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Original Article
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Frequent apocrine changes in pleomorphic adenoma with malignant transformation: a possible pre-malignant step in ductal carcinoma ex pleomorphic adenoma
Joon Seon Song, Yeseul Kim, Yoon-Se Lee, Seung-Ho Choi, Soon Yuhl Nam, Sang Yoon Kim, Kyung-Ja Cho
J Pathol Transl Med. 2023;57(3):158-165.   Published online May 10, 2023
DOI: https://doi.org/10.4132/jptm.2023.03.13
  • 3,931 View
  • 164 Download
  • 1 Web of Science
  • 1 Crossref
AbstractAbstract PDF
Background
The most common type of carcinoma ex pleomorphic adenoma (CPA) is histologically equivalent to salivary duct carcinoma, which has an apocrine phenotype. Invasive CPA is often accompanied by non-invasive or in situ carcinoma, an observation that suggests the presence of precursor lesions. The aim of this study was to identify candidate precursor lesions of CPA within pleomorphic adenoma (PA).
Methods
Eleven resected cases of CPA with residual PA and 17 cases of PA with atypical changes were subjected to immunohistochemistry (IHC) for p53, human epidermal growth factor receptor 2 (HER2), androgen receptor (AR), pleomorphic adenoma gene 1, gross cystic disease fluid protein-15 (GCDFP-15), and anti-mitochondrial antibody.
Results
Invasive or in situ carcinoma cells in all CPAs were positive for AR, GCDFP-15, and HER2. Atypical foci in PAs corresponded to either apocrine or oncocytic changes on the basis of their reactivity to AR, GCDFP-15, and anti-mitochondrial antibody. Atypical cells in PAs surrounding CPAs had an apocrine phenotype without HER2 expression.
Conclusions
Our study identified frequent apocrine changes in residual PAs in CPA cases, suggesting a possible precursor role of apocrine changes. We recommend the use of HER2 IHC in atypical PAs, and that clinicians take HER2 positivity into serious consideration.

Citations

Citations to this article as recorded by  
  • Characterization of a Molecularly Distinct Subset of Oncocytic Pleomorphic Adenomas/Myoepitheliomas Harboring Recurrent ZBTB47-AS1::PLAG1 Gene Fusion
    Ziyad Alsugair, Jimmy Perrot, Françoise Descotes, Jonathan Lopez, Anne Champagnac, Daniel Pissaloux, Claire Castain, Mihaela Onea, Philippe Céruse, Pierre Philouze, Charles Lépine, Marie-Delphine Lanic, Marick Laé, Valérie Costes-Martineau, Nazim Benzerdj
    American Journal of Surgical Pathology.2024; 48(5): 551.     CrossRef
Case Study
Squamous Cell Carcinoma of the Extrahepatic Common Hepatic Duct
Myunghee Kang, Na Rae Kim, Dong Hae Chung, Hyun Yee Cho, Yeon Ho Park
J Pathol Transl Med. 2019;53(2):112-118.   Published online October 1, 2018
DOI: https://doi.org/10.4132/jptm.2018.09.03
  • 7,737 View
  • 172 Download
  • 8 Web of Science
  • 9 Crossref
AbstractAbstract PDF
We report a rare case of hilar squamous cell carcinoma. A 62-year-old Korean woman complaining of nausea was referred to our hospital. Her biliary computed tomography revealed a 28 mm-sized protruding solid mass in the proximal common bile duct. The patient underwent left hemihepatectomy with S1 segmentectomy and segmental excision of the common bile duct. Microscopically, the tumor was a moderately differentiated squamous cell carcinoma of the extrahepatic bile duct, without any component of adenocarcinoma or metaplastic portion in the biliary epithelium. Immunohistochemically, the tumor was positive for cytokeratin (CK) 5/6, CK19, p40, and p63. Squamous cell carcinoma of the extrahepatic bile duct is rare. To date, only 24 cases of biliary squamous cell carcinomas have been reported. Here, we provide a clinicopathologic review of previously reported extrahepatic bile duct squamous cell carcinomas.

Citations

Citations to this article as recorded by  
  • Cholangiocarcinoma With Liver Metastasis in Squamous Cell Carcinoma Type: A Case Report
    Jane Chiang
    Journal of Diagnostic Medical Sonography.2024; 40(6): 609.     CrossRef
  • A Rare Case of Squamous Cell Carcinoma of the Bile Duct
    Julianna Tantum, Rachael Schneider, Stefanie Gallagher, Kyley Leroy, Jared Lander, Patricia Wong
    ACG Case Reports Journal.2023; 10(8): e01119.     CrossRef
  • Metastatic Anal Squamous Cell Carcinoma Presenting as an Indeterminate Biliary Stricture Diagnosed By Cholangioscopy
    Ritu Nahar, Ian Holmes, Jeffrey Baliff, Austin Chiang, Thomas Kowalski
    ACG Case Reports Journal.2022; 9(6): e00785.     CrossRef
  • Temporal Changes in Cholangiocarcinoma Incidence and Mortality in the United States from 2001 to 2017
    Milind Javle, Sunyoung Lee, Nilofer S Azad, Mitesh J Borad, Robin Kate Kelley, Smitha Sivaraman, Anna Teschemaker, Ishveen Chopra, Nora Janjan, Shreekant Parasuraman, Tanios S Bekaii-Saab
    The Oncologist.2022; 27(10): 874.     CrossRef
  • PRIMARY SQUAMOUS CELL CARCINOMA OF THE COMMON BILE DUCT WITH LIVER METASTASES
    Dhouha BACHA, Mohamed HAJRI, Wael FERJAOUI, Ghofrane TALBI, Lasaad GHARBI, Mohamed Taher KHALFALLAH, Sana ben SLAMA, Ahlem LAHMAR
    ABCD. Arquivos Brasileiros de Cirurgia Digestiva (São Paulo).2021;[Epub]     CrossRef
  • S1510 A Rare Case of Squamous Cell Carcinoma of the Bile Duct
    Stefanie Gallagher, Kyley Leroy, Julianna Tantum, Babak Etemad
    American Journal of Gastroenterology.2021; 116(1): S688.     CrossRef
  • Heparin

    Reactions Weekly.2019; 1752(1): 184.     CrossRef
  • Carcinoma primario de células escamosas del conducto hepático común: a propósito de un caso
    Ana Delgado Maroto, Andrés Barrientos Delgado, Marta Lázaro Sáez, Samia Hallouch Toutouh, Enrique Práxedes González
    Gastroenterología y Hepatología.2019; 42(7): 436.     CrossRef
  • Primary squamous cell carcinoma of the extrahepatic bile duct: A case report
    Ana Delgado Maroto, Andrés Barrientos Delgado, Marta Lázaro Sáez, Samia Hallouch Toutouh, Enrique Práxedes González
    Gastroenterología y Hepatología (English Edition).2019; 42(7): 436.     CrossRef
Original Article
Article image
Diverse Immunoprofile of Ductal Adenocarcinoma of the Prostate with an Emphasis on the Prognostic Factors
Se Un Jeong, Anuja Kashikar Kekatpure, Ja-Min Park, Minkyu Han, Hee Sang Hwang, Hui Jeong Jeong, Heounjeong Go, Yong Mee Cho
J Pathol Transl Med. 2017;51(5):471-481.   Published online August 9, 2017
DOI: https://doi.org/10.4132/jptm.2017.06.02
  • 9,520 View
  • 207 Download
  • 14 Web of Science
  • 14 Crossref
AbstractAbstract PDF
Background
Ductal adenocarcinoma (DAC) of the prostate is an uncommon histologic subtype whose prognostic factors and immunoprofile have not been fully defined. Methods: To define its prognostic factors and immunoprofile, the clinicopathological features, including biochemical recurrence (BCR), of 61 cases of DAC were analyzed. Immunohistochemistry was performed on tissue microarray constructs to assess the expression of prostate cancer-related and mammalian target of rapamycin (mTOR) signaling-related proteins. Results: During the median follow-up period of 19.3 months, BCR occurred in 26 cases (42.6%). DAC demonstrated a wide expression range of prostate cancer-related proteins, including nine cases (14.8%) that were totally negative for pan-cytokeratin (PanCK) immunostaining. The mTOR signaling-related proteins also showed diverse expression. On univariate analysis, BCR was associated with high preoperative serum levels of prostate-specific antigen (PSA), large tumor volume, predominant ductal component, high Gleason score (GS), comedo-necrosis, high tumor stage (pT), lymphovascular invasion, and positive surgical margin. High expressions of phospho-mTOR (p-mTOR) as well as low expressions of PSA, phospho-S6 ribosomal protein (pS6) and PanCK were associated with BCR. On multivariable analysis, GS, pT, and immunohistochemical expressions of PanCK and p-mTOR remained independent prognostic factors for BCR. Conclusions: These results suggest GS, pT, and immunohistochemical expressions of PanCK and p-mTOR as independent prognostic factors for BCR in DAC. Since DAC showed diverse expression of prostate cancer–related proteins, this should be recognized in interpreting the immunoprofile of DAC. The diverse expression of mTOR-related proteins implicates their potential utility as predictive markers for mTOR targeted therapy.

Citations

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  • Intermediate risk prostate tumors contain lethal subtypes
    William L. Harryman, James P. Hinton, Rafael Sainz, Jaime M. C. Gard, John M. Ryniawec, Gregory C. Rogers, Noel A. Warfel, Beatrice S. Knudsen, Raymond B. Nagle, Juan J. Chipollini, Benjamin R. Lee, Belinda L. Sun, Anne E. Cress
    Frontiers in Urology.2025;[Epub]     CrossRef
  • High GLUT1 membrane expression and low PSMA membrane expression in Ductal Adenocarcinoma and Intraductal Carcinoma of the prostate
    Xingming Wang, Li Zhou, Lin Qi, Ye Zhang, Hongling Yin, Yu Gan, Xiaomei Gao, Yi Cai
    Prostate Cancer and Prostatic Diseases.2024; 27(4): 720.     CrossRef
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    Jakub Karwacki, Marcel Stodolak, Andrzej Dłubak, Łukasz Nowak, Adam Gurwin, Kamil Kowalczyk, Paweł Kiełb, Nazar Holdun, Wojciech Szlasa, Wojciech Krajewski, Agnieszka Hałoń, Anna Karwacka, Tomasz Szydełko, Bartosz Małkiewicz
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  • Impact of Epithelial Histological Types, Subtypes, and Growth Patterns on Oncological Outcomes for Patients with Nonmetastatic Prostate Cancer Treated with Curative Intent: A Systematic Review
    Giancarlo Marra, Geert J.L.H. van Leenders, Fabio Zattoni, Claudia Kesch, Pawel Rajwa, Philip Cornford, Theodorus van der Kwast, Roderick C.N. van den Bergh, Erik Briers, Thomas Van den Broeck, Gert De Meerleer, Maria De Santis, Daniel Eberli, Andrea Faro
    European Urology.2023; 84(1): 65.     CrossRef
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    Histopathology.2023; 83(3): 339.     CrossRef
  • Survival after radical prostatectomy vs. radiation therapy in ductal carcinoma of the prostate
    Francesco Chierigo, Marco Borghesi, Christoph Würnschimmel, Rocco Simone Flammia, Benedikt Horlemann, Gabriele Sorce, Benedikt Höh, Zhe Tian, Fred Saad, Markus Graefen, Michele Gallucci, Alberto Briganti, Francesco Montorsi, Felix K. H. Chun, Shahrokh F.
    International Urology and Nephrology.2022; 54(1): 89.     CrossRef
  • Defining Diagnostic Criteria for Prostatic Ductal Adenocarcinoma at Multiparametric MRI
    Weranja K. B. Ranasinghe, Patricia Troncoso, Devaki Shilpa Surasi, Juan José Ibarra Rovira, Priya Bhosale, Janio Szklaruk, Andrea Kokorovic, Xuemei Wang, Mohamed Elsheshtawi, Miao Zhang, Ana Aparicio, Brian F. Chapin, Tharakeswara K. Bathala
    Radiology.2022; 303(1): 110.     CrossRef
  • Oncological outcomes of patients with ductal adenocarcinoma of the prostate receiving radical prostatectomy or radiotherapy
    Mengzhu Liu, Kun Jin, Shi Qiu, Pengyong Xu, Mingming Zhang, Wufeng Cai, Xiaonan Zheng, Lu Yang, Qiang Wei
    Asian Journal of Urology.2021; 8(2): 227.     CrossRef
  • Ductal Prostate Cancers Demonstrate Poor Outcomes with Conventional Therapies
    Weranja Ranasinghe, Daniel D. Shapiro, Hyunsoo Hwang, Xuemei Wang, Chad A. Reichard, Mohamed Elsheshtawi, Mary F. Achim, Tharakeswara Bathala, Chad Tang, Ana Aparicio, Shi-Ming Tu, Nora Navone, Timothy C. Thompson, Louis Pisters, Patricia Troncoso, John W
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    Nature Reviews Urology.2021; 18(6): 337.     CrossRef
  • A first case of ductal adenocarcinoma of the prostate having characteristics of neuroendocrine phenotype with PTEN, RB1 and TP53 alterations
    Hiroaki Kobayashi, Takeo Kosaka, Kohei Nakamura, Kazunori Shojo, Hiroshi Hongo, Shuji Mikami, Hiroshi Nishihara, Mototsugu Oya
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    European Urology Focus.2019; 5(3): 433.     CrossRef
  • Genomic Characterization of Prostatic Ductal Adenocarcinoma Identifies a High Prevalence of DNA Repair Gene Mutations
    Michael T. Schweizer, Emmanuel S. Antonarakis, Tarek A. Bismar, Liana B. Guedes, Heather H. Cheng, Maria S. Tretiakova, Funda Vakar-Lopez, Nola Klemfuss, Eric Q. Konnick, Elahe A. Mostaghel, Andrew C. Hsieh, Peter S. Nelson, Evan Y. Yu, R. Bruce Montgomer
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Case Study
Isolated Mass-Forming IgG4-Related Cholangitis as an Initial Clinical Presentation of Systemic IgG4-Related Disease
Seokhwi Kim, Hyunsik Bae, Misun Choi, Binnari Kim, Jin Seok Heo, Ho Seong Kim, Seung Hee Choi, Kee-Taek Jang
J Pathol Transl Med. 2016;50(4):300-305.   Published online January 11, 2016
DOI: https://doi.org/10.4132/jptm.2015.12.01
  • 9,977 View
  • 95 Download
  • 5 Web of Science
  • 3 Crossref
AbstractAbstract PDF
IgG4-related disease (IgG4-RD) may involve multiple organs. Although it usually presents as diffuse organ involvement, localized mass-forming lesions have been occasionally encountered in pancreas. However, the same pattern has been seldom reported in biliary tract. A 61-year-old male showed a hilar bile duct mass with multiple enlarged lymph nodes in imaging studies and he underwent trisectionectomy under impression of cholangiocarcinoma. Gross examination revealed a mass-like lesion around hilar bile duct. Histopathologically, dense lymphoplasmacytic infiltration and storiform fibrosis were identified without evidence of malignancy. Immunohistochemical stain demonstrated rich IgG4-positive plasma cell infiltration. Follow-up imaging studies disclosed multiple enlarged lymph nodes with involvement of pancreas and perisplenic soft tissue. The lesions have been significantly reduced after steroid treatment, which suggests multi-organ involvement of systemic IgG4-RD. Here, we report an unusual localized mass-forming IgG4-related cholangitis as an initial presentation of IgG4-RD, which was biliary manifestation of systemic IgG4-related autoimmune disease.

Citations

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  • Pathologic interpretation of endoscopic ultrasound–guided fine needle aspiration cytology/biopsy for pancreatic lesions
    Haeryoung Kim, Kee-Taek Jang
    Journal of Pathology and Translational Medicine.2020; 54(5): 367.     CrossRef
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    Xuexue Deng, Ronghua Fang, Jianshu Zhang, Rongqiong Li
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    Anna R. Wolfson, Daniel L. Hamilos
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Review
Neuroendocrine Tumors of the Female Reproductive Tract: A Literature Review
Yi Kyeong Chun
J Pathol Transl Med. 2015;49(6):450-461.   Published online October 13, 2015
DOI: https://doi.org/10.4132/jptm.2015.09.20
  • 16,394 View
  • 264 Download
  • 24 Web of Science
  • 24 Crossref
AbstractAbstract PDF
Neuroendocrine tumors of the female reproductive tract are a heterogeneous group of neoplasms that display various histologic findings and biologic behaviors. In this review, the classification and clinicopathologic characteristics of neuroendocrine tumors of the female reproductive tract are described. Differential diagnoses are discussed, especially for non-neuroendocrine tumors showing high-grade nuclei with neuroendocrine differentiation. This review also discusses recent advances in our pathogenetic understanding of these disorders.

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Review & Perspective
Intraductal Carcinoma of Prostate: A Comprehensive and Concise Review
Jordan A. Roberts, Ming Zhou, Yong Wok Park, Jae Y. Ro
Korean J Pathol. 2013;47(4):307-315.   Published online August 26, 2013
DOI: https://doi.org/10.4132/KoreanJPathol.2013.47.4.307
  • 13,371 View
  • 143 Download
  • 11 Crossref
AbstractAbstract PDF

Intraductal carcinoma of the prostate (IDC-P) is defined as a proliferation of prostate adenocarcinoma cells distending and spanning the lumen of pre-existing benign prostatic ducts and acini, with at least focal preservation of basal cells. Studies demonstrate that IDC-P is strongly associated with high-grade (Gleason grades 4/5), large-volume invasive prostate cancers. In addition, recent genetic studies indicate that IDC-P represents intraductal spread of invasive carcinoma, rather than a precursor lesion. Some of the architectural patterns in IDC-P exhibit architectural overlap with one of the main differential diagnoses, high-grade prostatic intraepithelial neoplasia (HGPIN). In these instances, additional diagnostic criteria for IDC-P, including marked nuclear pleomorphism, non-focal comedonecrosis (>1 duct showing comedonecrosis), markedly distended normal ducts/acini, positive nuclear staining for ERG, and cytoplasmic loss of PTEN by immunohistochemistry, can help make the distinction. This distinction between IDC-P and HGPIN is of critical importance because IDC-P has an almost constant association with invasive carcinoma and has negative clinical implications, including shorter relapse-free survival, early biochemical relapse, and metastatic failure rate after radiotherapy. Therefore, IDC-P should be reported in prostate biopsies and radical prostatectomies, regardless of the presence of an invasive component. This article will review the history, diagnostic criteria, molecular genetics, and clinical significance of IDC-P.

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  • Histopathological features of intra-ductal carcinoma of prostatic and high grade prostatic intraepithelialneoplasia and correlation with PTEN and P63
    Simin Torabi-Nezhad, Leila Malekmakan, Mohadese Mashayekhi, Arghavan Daneshian
    The Prostate.2016; 76(4): 394.     CrossRef
  • Intraduktales Karzinom der Prostata
    G. Kristiansen, M. Varma, G. Seitz
    Der Pathologe.2016; 37(1): 27.     CrossRef
  • A Better Understating of the Morphological Features and Molecular Characteristics of Intraductal Carcinoma Helps Clinicians Further Explain Prostate Cancer Aggressiveness
    Rodolfo Montironi, Liang Cheng, Antonio Lopez-Beltran, Marina Scarpelli, Francesco Montorsi
    European Urology.2015; 67(3): 504.     CrossRef
  • Clinicopathological analysis of intraductal proliferative lesions of prostate: intraductal carcinoma of prostate, high-grade prostatic intraepithelial neoplasia, and atypical cribriform lesion
    Kosuke Miyai, Mukul K. Divatia, Steven S. Shen, Brian J. Miles, Alberto G. Ayala, Jae Y. Ro
    Human Pathology.2014; 45(8): 1572.     CrossRef
Original Articles
HDAC1 Expression in Invasive Ductal Carcinoma of the Breast and Its Value as a Good Prognostic Factor
Minseob Eom, Sung Soo Oh, Sayamaa Lkhagvadorj, Airi Han, Kwang Hwa Park
Korean J Pathol. 2012;46(4):311-317.   Published online August 23, 2012
DOI: https://doi.org/10.4132/KoreanJPathol.2012.46.4.311
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AbstractAbstract PDF
Background

Histone deacetylase 1 (HDAC1) is associated with the expression and function of estrogen receptors and the proliferation of tumor cells, and has been considered a very important factor in breast tumor progression and prognosis. Several studies have reported an association between HDAC1 expression and poorer prognosis in cancers including breast cancer, with a few exceptions. However, because of the dearth of studies on HDAC1 expression in breast cancer, its significance for breast cancer prognosis has not been well defined. Therefore, we examined HDAC1 expression in invasive ductal carcinoma (IDC), the most common breast cancer, and investigated its potential prognostic significance.

Methods

We used 203 IDC tissue samples. Immunohistochemical stains for HDAC1 and real-time polymerase chain reaction for HDAC1 mRNA were performed and the results were compared to generally well-established prognostic factors in breast cancer and patient survival rates.

Results

HDAC1 expression was significantly reduced in proportion to higher histologic grade, higher nuclear pleomorphism score, and higher mitotic counts, and with lower estrogen receptor expression. Furthermore, it was significantly associated with the survival rate.

Conclusions

HDAC1 expression is a good prognostic indicator in IDC.

Citations

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  • SNP rs4971059 predisposes to breast carcinogenesis and chemoresistance via TRIM46‐mediated HDAC1 degradation
    Zihan Zhang, Xiaoping Liu, Lei Li, Yang Yang, Jianguo Yang, Yue Wang, Jiajing Wu, Xiaodi Wu, Lin Shan, Fei Pei, Jianying Liu, Shu Wang, Wei Li, Luyang Sun, Jing Liang, Yongfeng Shang
    The EMBO Journal.2021;[Epub]     CrossRef
  • The Impact of Androgen Receptor and Histone Deacetylase 1 Expression on the Prognosis of Ductal Carcinoma In Situ
    Choong Man Lee, Il Yong Chung, Yangsoon Park, Keong Won Yun, Hwi Gyeong Jo, Hye Jin Park, Hee Jin Lee, Sae Byul Lee, Hee Jeong Kim, Beom Seok Ko, Jong Won Lee, Byung Ho Son, Sei Hyun Ahn, Jisun Kim
    Journal of Breast Cancer.2020; 23(6): 610.     CrossRef
  • Prognostic and clinical significance of histone deacetylase 1 expression in breast cancer: A meta-analysis
    Weiqiang Qiao, Heyang Liu, Ruidong Liu, Qipeng Liu, Ting Zhang, Wanying Guo, Peng Li, Miao Deng
    Clinica Chimica Acta.2018; 483: 209.     CrossRef
  • HDAC1 triggers the proliferation and migration of breast cancer cells via upregulation of interleukin-8
    Zhaohui Tang, Sijuan Ding, Honglin Huang, Pengfei Luo, Bohua Qing, Siyuan Zhang, Ruoting Tang
    Biological Chemistry.2017; 398(12): 1347.     CrossRef
  • Identification of novel histone deacetylase 1 inhibitors by combined pharmacophore modeling, 3D-QSAR analysis, in silico screening and Density Functional Theory (DFT) approaches
    Sanjay K. Choubey, Richard Mariadasse, Santhosh Rajendran, Jeyakanthan Jeyaraman
    Journal of Molecular Structure.2016; 1125: 391.     CrossRef
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    Namita Chatterjee, Martin Tenniswood
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The Ratio of Atypical Ductal Hyperplasia Foci to Core Numbers in Needle Biopsy: A Practical Index Predicting Breast Cancer in Subsequent Excision
Jeong-Ju Lee, Hee Jin Lee, Jun Kang, Jeong-Hyeon Jo, Gyungyub Gong
Korean J Pathol. 2012;46(1):15-21.   Published online February 23, 2012
DOI: https://doi.org/10.4132/KoreanJPathol.2012.46.1.15
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AbstractAbstract PDF
Background

Although core needle biopsy (CNB) is considered to be the standard technique for histological diagnosis of breast lesions, it is less reliable for diagnosing atypical ductal hyperplasia (ADH). We therefore assessed the characteristics of CNB-diagnosed ADH that are more likely to be associated with more advanced lesions on subsequent surgical excision.

Methods

We retrospectively examined 239 consecutive CNBs, 127 of which were diagnosed as ADH following surgical excision, performed at Asan Medical Center between 1995 and 2010. Archival slides were analyzed for the number of cores per specimen, the number of ADH foci, and the ratio of ADH foci to number of cores (FC ratio).

Results

We found that ADH foci in 3 or more cores (p=0.003) and the presence of ADH in 3 or more foci (p=0.002) were correlated with malignancy following excision lesion. Moreover, an FC>1.1 was significantly associated with malignancy in the subsequent excision (p=0.000).

Conclusions

Including the number of ADH foci, the number of cores involved according to ADH, FC ratio, and histologic type in a pathology report of CNB may help in making clinical decisions about surgical excision.

Citations

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  • Active Surveillance for Atypical Ductal Hyperplasia and Ductal Carcinoma In Situ
    Rachel Miceli, Cecilia L Mercado, Osvaldo Hernandez, Chloe Chhor
    Journal of Breast Imaging.2023; 5(4): 396.     CrossRef
Case Reports
Esophageal Gland Duct Adenoma.
Yoonjung Kim, Yang Soon Park, Jei So Bang, Ji Yeon Kim, Young Hyeh Ko, Cheol Keun Park, Kyoung Mee Kim
Korean J Pathol. 2011;45:S45-S47.
DOI: https://doi.org/10.4132/KoreanJPathol.2011.45.S1.S45
  • 3,332 View
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AbstractAbstract PDF
Benign ductal or glandular neoplasms of the esophagus unrelated to Barrett esophagus are extremely rare. Only 9 cases have been reported in the English language literature. We now report a case of esophageal gland duct adenoma incidentally found in a 73-year-old man. A 0.8 cm-sized, polypoid submucosal lesion in the distal esophagus was removed. Histologically, the lesion was well circumscribed and consisted of several ducts or cysts with focal papillary configurations. Interstitial lymphocytic infiltration with germinal centers was also observed. The lining cells of ducts or cysts were composed of two layers: an inner intensely eosinophilic luminal duct cell layer and an outer myoepithelial cell layer that was accentuated by alpha-smooth muscle actin. There was no significant nuclear atypia or mitosis. Mucin production was occasionally observed in a few goblet cells. To the best of our knowledge, this is the first case of benign ductal or glandular neoplasm of the esophagus among Koreans.
Simultaneous Pancreatic Serous Microcystic Adenoma and Intraductal Papillary Mucinous Tumor of the Pancreas: A Case Report.
Hyoung Jong Kwak, Young Kon Kim, Baik Hwan Cho, Woo Sung Moon
Korean J Pathol. 2011;45:S29-S31.
DOI: https://doi.org/10.4132/KoreanJPathol.2011.45.S1.S29
  • 3,105 View
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AbstractAbstract PDF
Serous cystadenomas of the pancreas account for approximately a third of pancreatic cystic neoplasms. Their coexistence with a second tumor is extremely rare. We now report a case of a serous microcystic adenoma combined with an intraductal papillary mucinous tumor of the pancreas in a 69-year-old man. Abdominal computed tomography scans demonstrated an incidental cystic mass in the body with cystic dilatation of the duct in the head of the pancreas. Central pancreatectomy with pancreatico-jejunostomy, and cyst excision of the pancreatic head were performed. Histologic examination demonstrated a serous microcystic cystadenoma in the body coexisting with an intraductal papillary mucinous adenoma in the head of the pancreas. This case study highlights the importance of careful intra-operative and pathologic examination for synchronous pancreatic tumors.
Ectopic Epididymis in Testicular Appendices: Report of Two Cases.
Hyun Soo Kim, Gou Young Kim, Hyung Lae Lee, Youn Wha Kim, Sung Jig Lim
Korean J Pathol. 2011;45:S11-S14.
DOI: https://doi.org/10.4132/KoreanJPathol.2011.45.S1.S11
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AbstractAbstract PDF
We report two cases of ectopic epididymal ducts and efferent ductules in the testicular appendices (TAs) of adult men with normally descended testes. In both cases, a sessile TA was incidentally found at the upper pole of the right testis during the scrotal hydrocelectomy. Microscopically, a few closely arranged tubules were detected within the TA. In the first case, the tubules were lined with a pseudostratified columnar epithelium with numerous, long microvilli, and were surrounded by a smooth muscle coat. In contrast, in the second case, the tubules had a wavy luminal surface, because ciliated columnar cells alternated with groups of cuboidal cells. In both cases, strong CD10 immunoreactivity was observed in the luminal border of the lining epithelium. Surgical pathologists should be aware of the presence of both ectopic epididymal ducts and efferent ductules that can occur in TAs, in order to avoid misinterpretation as transected, functional reproductive structures.
Original Articles
Idiopathic Duct Centric Pancreatitis in Korea: A Clinicopathological Study of 14 Cases.
Hyo Jeong Kang, Tae Jun Song, Eunsil Yu, Jihun Kim
Korean J Pathol. 2011;45(5):491-497.
DOI: https://doi.org/10.4132/KoreanJPathol.2011.45.5.491
  • 3,791 View
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AbstractAbstract PDF
BACKGROUND
Idiopathic duct centric pancreatitis (IDCP) is a subtype of autoimmune pancreatitis (AIP) that is histologically characterized by granulocytic epithelial lesion and scarce IgG4-positive cells. This subtype of AIP has not been documented in Asian countries.
METHODS
We reviewed 38 histologically confirmed AIP cases and classified them into lymphoplasmacytic sclerosing pancreatitis (LPSP) and IDCP. Then, clinicopathological characteristics were compared between LPSP and IDCP.
RESULTS
Fourteen cases (36.8%) were IDCP. IDCP affected younger patients more than LPSP. IDCP was associated with ulcerative colitis in 35.7% of cases, whereas LPSP was associated with IgG4-related sclerosing diseases such as cholangitis, retroperitoneal fibrosis or sialadenitis in 41.7% of cases. IDCP was microscopically characterized by neutrophilic ductoacinitis with occasional granulocytic epithelial lesions, whereas LPSP was characterized by storiform inflammatory cell-rich fibrosis and obliterative phlebitis. IgG4-positive cells were not detected in any IDCP case but more than 20 IgG4-positive cells per high-power-field were invariably detected in LPSP cases. All patients with IDCP responded dramatically to steroids without recurrence, whereas 33.3% of patients with LPSP developed recurrences.
CONCLUSIONS
IDCP is clinicopathologically distinct from LPSP and can be diagnosed when neutrophilic ductoacinitis or granulocytic epithelial lesions are observed in a pancreatic biopsy under the appropriate clinical setting.
Uncoupling Protein 2 (UCP2) and p53 Expression in Invasive Ductal Carcinoma of Breast.
Kyu Yeoun Won, Gou Young Kim, Youn Wha Kim, Sung Jig Lim, Jeong Yoon Song
Korean J Pathol. 2010;44(6):565-570.
DOI: https://doi.org/10.4132/KoreanJPathol.2010.44.6.565
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AbstractAbstract PDF
BACKGROUND
Uncoupling protein 2 (UCP2) is a recently identified mitochondrial inner membrane anion carrier and a negative regulator of reactive oxygen species production. In this study, we evaluated the characteristics and relationships of UCP2 and p53 expression in breast cancer tissues.
METHODS
Tissue microarray slides from 107 cases of invasive ductal carcinoma of the breast were constructed, UCP2 and p53 immunohistochemical staining was conducted, and clinicopathological correlations were investigated.
RESULTS
UCP2 expression in invasive ductal carcinoma was high in 53 cases (49.5%), while p53 expression in invasive ductal carcinoma was high in 37 cases (34.6%). UCP2 expression was correlated significantly with histological grade (p = 0.038) and mitotic count (p = 0.050). UCP2 expression was correlated significantly with p53 expression in invasive ductal carcinoma of the breast (p = 0.045). UCP2 expression (p = 0.8308) and p53 expression (p = 0.3292) showed no significant difference for the overall survival rate in patients with invasive ductal carcinoma.
CONCLUSIONS
UCP2 expression in invasive ductal carcinoma increased proportionally with histological grade and mitotic count. High UCP2 expression in invasive ductal carcinoma was observed in conjunction with high p53 expression.

Citations

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  • Forkhead box protein A1 inhibits the expression of uncoupling protein 2 in hydrogen peroxide-induced A549 cell line
    Lan Song, Zhaojun Xu, Ling Li, Mei Hu, Lijuan Cheng, Lingli Chen, Bo Zhang
    Cell Stress and Chaperones.2014; 19(1): 53.     CrossRef
  • New Aspects of Mitochondrial Uncoupling Proteins (UCPs) and Their Roles in Tumorigenesis
    Delira Robbins, Yunfeng Zhao
    International Journal of Molecular Sciences.2011; 12(8): 5285.     CrossRef
Clinical Outcome of Surgically Resected Pancreatic Intraductal Papillary Mucinous Neoplasm According to the Marginal Status: A Single Center Experience.
Sun A Kim, Eunsil Yu, Song Cheol Kim, Jihun Kim
Korean J Pathol. 2010;44(4):410-419.
DOI: https://doi.org/10.4132/KoreanJPathol.2010.44.4.410
  • 3,803 View
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AbstractAbstract PDF
BACKGROUND
Surgical resection is the treatment of choice of intraductal papillary mucinous neoplasm (IPMN) of the pancreas. However, the benefit of clearing resection margin is still controversial.
METHODS
We reviewed 281 surgically resected cases of IPMN. The recurrences were compared according to the histologic grade (benign or borderline IPMN, malignant noninvasive IPMN, invasive carcinoma) and size (pancreatic intraepithelial neoplasia, PanIN, less than 0.5 cm in the long axis; and IPMN, greater than or equal to 0.5 cm) of the residual lesions at the resection margin.
RESULTS
Sixty cases (21.4%) were invasive carcinoma, and 221 (78.6%) noninvasive cases included 87 (31.0%) benign, 107 (38.1%) borderline and 11 (3.9%) malignant noninvasive IPMN cases. In noninvasive IPMN, increased recurrence in patients with five or more years of follow-up was only related to the involvement of resection margin by severe dysplasia. The recurrence of invasive carcinoma was high (27.3%) even when the resection margin was clear, and was not related to the grade or size of residual tumors at the resection margin.
CONCLUSIONS
Invasiveness is a strong risk factor for recurrence in IPMN regardless of the status of the resection margin. However, in noninvasive IPMN, histologic grading of residual lesions at the resection margin predicts local recurrence.

Citations

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  • Systematic review of challenging issues in pathology of intraductal papillary mucinous neoplasms
    Laura D. Wood, N. Volkan Adsay, Olca Basturk, Lodewijk A.A. Brosens, Noriyoshi Fukushima, Seung-Mo Hong, Sung-Joo Kim, Jae W. Lee, Claudio Luchini, Michaël Noë, Martha B. Pitman, Aldo Scarpa, Aatur D. Singhi, Mariko Tanaka, Toru Furukawa
    Pancreatology.2023; 23(7): 878.     CrossRef
  • The Use of Intraoperative Frozen Sections in Guiding the Extent of Pancreatic Resections for Intraductal Papillary Mucinous Neoplasms
    Zhikai Chi, Deepti Dhall, Richard Mertens
    Pancreas.2022; 51(1): 63.     CrossRef
  • Recurrence of non-invasive intraductal papillary municious neoplasm seven years following total pancreatectomy
    Nayima M. Clermont Dejean, Sinziana Dumitra, Jeffrey S. Barkun
    International Journal of Surgery Case Reports.2013; 4(9): 789.     CrossRef
Clinicopathological Significance of Invasive Ductal Carcinoma with High Prevalence of CD44(+)/CD24(-/low) Tumor Cells in Breast Cancer.
Ji Youn Sung, Gou Young Kim, Yong Koo Park, Juhie Lee, Youn Wha Kim, Sung Jig Lim
Korean J Pathol. 2010;44(4):390-396.
DOI: https://doi.org/10.4132/KoreanJPathol.2010.44.4.390
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AbstractAbstract PDF
BACKGROUND
Epithelial tumor cells with a CD44(+)/CD24(-/low) immunoprofile may have the ability to cause breast cancer. We studied these cells and their clinicopathological significance.
METHODS
The clinicopathologic findings of 100 invasive ductal carcinoma (IDC) cases and 45 ductal carcinoma in situ (DCIS) cases were reviewed. CD44(+)/CD24(-/low) tumor cells were identified by immunohistochemistry, and their clinicopathological implications in IDC and DCIS were analyzed.
RESULTS
IDC with a high prevalence of CD44(+)/CD24(-/low) tumor cells was significantly associated with larger mass, higher grade, estrogen receptor (ER) negativity, and tumor cells with a higher frequency of metastasis. The proportion of CD44(+)/CD24(-/low) tumor cells in IDC, and its DCIS components was not significantly different, whereas the proportion of CD44(+)/CD24(-/low) tumor cells was higher in DCIS than in the DCIS component of IDC (p < 0.001).
CONCLUSIONS
IDC with a high prevalence of CD44(+)/CD24(-/low) tumor cells might correlate with aggressive features, such as ER and higher grades. Moreover, the proportion of CD44(+)/CD24(-/low) tumor cells in the DCIS components of IDC and DCIS might harbor different biology, which may lead to differences in cancer progression and early carcinogenesis.

Citations

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  • CD44 Marks Dormant Tumor Cells After HER2 Inhibition in Breast Cancer Cells
    Carla Vargas, Adam Aguirre-Ducler, Karina Cereceda, Sebastián Quijada, Nicolás Escobar-Gómez, Rodrigo L. Castillo, Matías Escobar-Aguirre
    International Journal of Molecular Sciences.2025; 26(10): 4907.     CrossRef
  • Clinicopathologic Characteristics of Breast Cancer Stem Cells Identified on the Basis of Aldehyde Dehydrogenase 1 Expression
    Yoon Seok Kim, Min Jung Jung, Dong Won Ryu, Chung Han Lee
    Journal of Breast Cancer.2014; 17(2): 121.     CrossRef
  • CD44/CD24 as potential prognostic markers in node-positive invasive ductal breast cancer patients treated with adjuvant chemotherapy
    Agnieszka Adamczyk, Joanna A. Niemiec, Aleksandra Ambicka, Anna Mucha-Małecka, Jerzy Mituś, Janusz Ryś
    Journal of Molecular Histology.2014; 45(1): 35.     CrossRef

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