Journal of Pathology and Translational Medicine

Original Articles

Upward trend in follicular lymphoma among the Korean population: 10-year experience at a large tertiary institution: Meejeong Kim, Hee Sang Hwang, Hyungwoo Cho, Dok Hyun Yoon, Cheolwon Suh, Chan Sik Park, Heounjeong Go, Jooryung Huh; J Pathol Transl Med. 2021;55(5):330-337. Published online September 2, 2021; DOI: https://doi.org/10.4132/jptm.2021.07.25

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Background
Follicular lymphoma (FL) is the second most common non-Hodgkin lymphoma (NHL) in Western countries. However, it is relatively rare in Asia. This study examined epidemiologic characteristics of FL in South Korea, with an emphasis on recent trends of increase in cases.
Methods
We retrospectively examined 239 cases of newly diagnosed FL at a large tertiary institution in Korea (Asan Medical Center, Seoul, Republic of Korea) between 2008 and 2017. Age-adjusted incidence rates and clinicopathological variables were analyzed, and joinpoint regression analysis was used to identify the changes.
Results
The age-adjusted incidence of FL significantly increased during the study period (p = .034), and the ratio of (relative incidence) patients with FL to patients with NHL increased from 4.28% to 9.35% in the same period. Over the 10-year study assessment duration, the proportion of patients with stage III/IV FL (p = .035) and expression of BCL2 (p = .022) or BCL6 (p = .039) significantly increased. From 2013–2017, the proportion of patients with highrisk Follicular Lymphoma International Prognostic Index (FLIPI) score increased (21.5% to 28.7%), whereas that of low-risk FLIPI decreased (55.4% to 38.6%), although those results were not statistically significant (p = .066).
Conclusions
We found an increasing incidence of FL, with a disproportionate increase in the incidence of high-stage disease and recent changes in the clinicopathologic features of the Korean patient population.

Citations

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Incidence Trend of Follicular Lymphoma in Taiwan Compared to Japan and Korea, 2001–2019
Liang-Chun Chiu, Chih-Wen Lin, Hung-Ju Li, Jian-Han Chen, Fu-Cheng Chuang, Sheng-Fung Lin, Yu Chang, Yu-Chieh Su
Journal of Clinical Medicine.2023; 12(4): 1417. CrossRef
A Case Report on the Complete Response of a Patient with Recurrent Follicular Lymphoma Treated with Integrative Medicine
Kyung-dug Park, Jisoo Kim, Yoona Oh, Beom-Jin Jeong, Yu-jin Jung, Sunhwi Bang
The Journal of Internal Korean Medicine.2023; 44(3): 585. CrossRef
Recent Updates on Diagnosis and Treatment of Follicular Lymphoma
Ga-Young Song, Deok-Hwan Yang
The Korean Journal of Medicine.2023; 98(5): 231. CrossRef
Classical Hodgkin lymphoma following follicular lymphoma: a case report
Bomi Kim
Journal of Yeungnam Medical Science.2023; 40(Suppl): S113. CrossRef
Incidence, clinicopathological features and genetics of in‐situ follicular neoplasia: a comprehensive screening study in a Japanese cohort
Naoki Oishi, Takahiro Segawa, Kunio Miyake, Kunio Mochizuki, Tetsuo Kondo
Histopathology.2022; 80(5): 820. CrossRef

Human Papillomavirus Serologic Profiles of Selected Filipinos with Head and Neck Squamous Cell Carcinoma: Pia Marie Albano, Christianne Salvador, Jose Orosa, Sheryl Racelis, Modesty Leaño, Angelika Michel, John Donnie Ramos, Dana Holzinger, Michael Pawlita; J Pathol Transl Med. 2019;53(5):273-279. Published online May 30, 2019; DOI: https://doi.org/10.4132/jptm.2019.05.12

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Abstract PDF

Background
The low prevalence of human papillomavirus (HPV) DNA and mRNA in biopsy samples of Filipinos with head and neck squamous cell carcinoma (HNSCC) has been reported previously. Here, the HPV serologic profiles of HNSCC cases were analyzed and associated with life-style and sexual practices.
Methods
Serum samples were collected between May 2012 and September 2013 from HNSCC patients (n = 22) in the northwest region of the Philippines, and age- and sex-matched clinically healthy controls. Antibodies to capsid and early oncoproteins of HPV16, 18, 31, 33, 45, 52, 58, 6, and 11 were analyzed using multiplex serology.
Results
Most of the cases were males with tumors of the oral cavity or larynx. Two of the cases tested positive for at least one of the early oncoproteins (E6, E7, E1, and/or E2) of HPV16, and 11 did not display reactivity to any HPV early or late oncoproteins. Of the controls, four tested positive for at least one of the HPV16 early oncoproteins, and 10 were non-reactive to all HPV types. Titers to HPV16 E6 or E7 of the seropositive cases and controls were considerably lower than those typically observed in economically developed countries.
Conclusions
The low HPV titers seen here are consistent with the results of molecular analyses for this population. Hence, the seropositivity of some of the HNSCC cases is likely an indication of prior exposure to the virus and not the presence of HPV-driven tumors.

Citations

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Social determinants of sex disparities in cancer in Southeast Asia
Ma. Veronica Pia N. Arevalo, Ethan Angelo S. Maslog, Katherine Donatela Manlongat, Eric David B. Ornos, Imjai Chitapanarux, Michelle Ann B. Eala, Edward Christopher Dee
iScience.2023; 26(7): 107110. CrossRef

Review

Acute Atherosis of the Uterine Spiral Arteries: Clinicopathologic Implications: Joo-Yeon Kim, Yeon Mee Kim; J Pathol Transl Med. 2015;49(6):462-471. Published online November 4, 2015; DOI: https://doi.org/10.4132/jptm.2015.10.23

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Abstract PDF

Acute atherosis is unique vascular changes of the placenta associated with poor placentation. It is characterized by subendothelial lipid-filled foam cells, fibrinoid necrosis of the arterial wall, perivascular lymphocytic infiltration, and it is histologically similar to early-stage atherosclerosis. Acute atherosis is rare in normal pregnancies, but is frequently observed in non- transformed spiral arteries in abnormal pregnancies, such as preeclampsia, small for gestational age (SGA), fetal death, spontaneous preterm labor and preterm premature rupture of membranes. In preeclampsia, spiral arteries fail to develop physiologic transformation and retain thick walls and a narrow lumen. Failure of physiologic transformation of spiral arteries is believed to be the main cause of uteroplacental ischemia, which can lead to the production of anti-angiogenic factors and induce endothelial dysfunction and eventually predispose the pregnancy to preeclampsia. Acute atherosis is more frequently observed in the spiral arteries of the decidua of the placenta (parietalis or basalis) than in the decidual or myometrial segments of the placental bed. The presence and deeper location of acute atherosis is associated with poorer pregnancy outcomes, more severe disease, earlier onset of preeclampsia, and a greater frequency of SGA neonates in patients with preeclampsia. Moreover, the idea that the presence of acute atherosis in the placenta may increase the risk of future cardiovascular disease in women with a history of preeclampsia is of growing concern. Therefore, placental examination is crucial for retrospective investigation of pregnancy complications and outcomes, and accurate placental pathology based on universal diagnostic criteria in patients with abnormal pregnancies is essential for clinicopathologic correlation.

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Human Placenta and Evolving Insights into Pathological Changes of Preeclampsia: A Comprehensive Review of the Last Decade
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Janet P. Raja Xavier, Toshiyuki Okumura, Melina Apweiler, Nirzari A. Chacko, Yogesh Singh, Sara Y Brucker, Satoru Takeda, Florian Lang, Madhuri S Salker
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Abdul Wajid, David Todem, Mark R. Schleiss, David F. Colombo, Nigel S. Paneth
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Stem Cell Research & Therapy.2020;[Epub] CrossRef
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V. I. Shcherbakov, Ya. V. Polonskaya, E. V. Kashtanova, A. V. Shirinskaya
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Early Onset Preeclampsia Is Associated With Glycocalyx Degradation and Reduced Microvascular Perfusion
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Case Study

Oncocytic Lipoadenoma: A Rare Case of Parotid Gland Tumor and Review of the Literature: Chen-lin Chi, Tseng-tong Kuo, Li-yu Lee; J Pathol Transl Med. 2015;49(2):144-147. Published online March 12, 2015; DOI: https://doi.org/10.4132/jptm.2014.02.10

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Abstract PDF

Oncocytic lipoadenoma is a rare tumor, with only 18 cases having been reported since the first in 1998. We encountered a case of oncocytic lipoadenoma presenting as a slowly growing parotid mass in a 71-year-old man. This tumor is characteristically comprised of a mixture of oncocytes and adipocytes. The present case is one of five reported cases of oncocytic lipoadenoma showing sebaceous differentiation. The results of immunohistochemical study with DOG1 antibody supported the origination of this tumor in the striated duct.

Citations

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Oncocytic lipoadenoma of the parotid gland: a case report and a review of the literature
Jood K Alotaibi, Turki Mohammed Almuhaimid, Ghada Abdallah Moumneh
Journal of Surgical Case Reports.2024;[Epub] CrossRef
Oncocytic sialolipoma of parotid gland: Case report and literature review
VenuPatel Sureja, KoyyeRavindranath Tagore
Indian Journal of Pathology and Microbiology.2023; 66(3): 591. CrossRef
Complex Component of Oncocytic and Non-Oncocytic Lipoadenomas in the Parotid Gland: A Case Report
Fuyuki Sato, Takashi Nakajima, Takashi Sugino
Diagnostics.2021; 11(8): 1478. CrossRef
Oncocyitic lipoadenoma of the parotid gland
Renato PIANTANIDA, Alberto CARANTI, Adele CHIESA, Jessica BARIZZI, Ulrike PERRIARD, Filippo BARUCCA, Antonio PELLANDA
Otorinolaringologia.2021;[Epub] CrossRef
A case of oncocytic lipoadenoma of the submandibular gland and its diagnostic cytology challenges
Khaled A. Murshed, Ammar Khalafalla, Belal Alani, Hanan Farghaly, Moustafa Alkhalil
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An extremely rare case of giant oncocytic adenolipoma of the parotid gland
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Brief Case Reports

A Case of Mixed Adenoneuroendocrine Carcinoma of the Common Bile Duct: Initially Diagnosed as Cholangiocarcinoma: Soon Wook Lee, In Seok Lee, Yu Kyung Cho, Jae Myung Park, Sang Woo Kim, Myung-Gyu Choi, Kyu Yong Choi, Myung Ah Lee, Tae Ho Hong, Young Kyoung You, Eun-Sun Jung; Korean J Pathol. 2014;48(6):445-448. Published online December 31, 2014; DOI: https://doi.org/10.4132/KoreanJPathol.2014.48.6.445

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Jia Li, Chunyan Yuan, Yulin Pan, Yuanyuan Yang, Nannan Lai, Xia Sheng
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Neuroendocrine carcinoma of the common hepatic duct coexisting with distal cholangiocarcinoma: A case report and review of literature
Fei Chen, Wei-Wei Li, Juan-Fen Mo, Min-Jie Chen, Su-Hang Wang, Shu-Ying Yang, Zheng-Wei Song
World Journal of Gastrointestinal Surgery.2024; 16(5): 1449. CrossRef
Comparison of Metastatic Patterns Among Neuroendocrine Tumors, Neuroendocrine Carcinomas, and Nonneuroendocrine Carcinomas of Various Primary Organs
Hyung Kyu Park, Ghee Young Kwon
Journal of Korean Medical Science.2023;[Epub] CrossRef
Mixed adenoneuroendocrine carcinoma of the distal bile duct: a case report
Takashi Maeda, Kyohei Yugawa, Nao Kinjo, Hiroto Kayashima, Daisuke Imai, Koto Kawata, Shinichiro Ikeda, Keitaro Edahiro, Kazuki Takeishi, Tomohiro Iguchi, Noboru Harada, Mizuki Ninomiya, Shohei Yamaguchi, Kozo Konishi, Shinichi Tsutsui, Hiroyuki Matsuda
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Li-Jia Wen, Jun-Hong Chen, Hong-Ji Xu, Qiong Yu, Yu Deng, Kai Liu
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Myoepithelial Carcinoma of Soft Tissue: A Case Report and Review of the Literature: Chang Hwan Choi, Young Chae Chu, Lucia Kim, Suk Jin Choi, In Suh Park, Jee Young Han, Joon Mee Kim; Korean J Pathol. 2014;48(6):413-417. Published online December 31, 2014; DOI: https://doi.org/10.4132/KoreanJPathol.2014.48.6.413

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Case Study

Myxoid Liposarcoma with Cartilaginous Differentiation: A Case Study with Cytogenetical Analysis: Hyunchul Kim, Won Hwangbo, Sangjeong Ahn, Suhjin Kim, Insun Kim, Chul Hwan Kim; Korean J Pathol. 2013;47(3):284-288. Published online June 25, 2013; DOI: https://doi.org/10.4132/KoreanJPathol.2013.47.3.284

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Abstract PDF

Myxoid liposarcoma is a subtype of liposarcoma. This specific subtype can be identified based on its characteristic histological and cytogenetical features. The tumor has a fusion transcript of the CHOP and TLS genes, which is caused by t(12;16)(q13;p11). Most of the fusion transcripts that have been identified fall into three categories, specifically type I (exons 7-2), type II (exons 5-2), and type III (exons 8-2). A total of seven myxoid liposarcomas associated with the rare phenomenon of cartilaginous differentiation have been documented in the literature. Currently, only one of these cases has been cytogenetically analyzed, and the analysis indicated that it was a type II TLS-CHOP fusion transcript in both the typical myxoid liposarcoma and cartilaginous areas. This study presents a second report of myxoid liposarcoma with cartilaginous differentiation, and includes a cytogenetical analysis of both the myxoid and cartilaginous areas.

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Virchows Archiv.2024; 484(1): 71. CrossRef
The Conundrum of Dedifferentiation in a Liposarcoma at a Peculiar Location: A Case Report and Literature Review
Ana-Maria Ciongariu, Adrian-Vasile Dumitru, Cătălin Cîrstoiu, Bogdan Crețu, Maria Sajin, Dana-Antonia Țăpoi, Aminia-Diana Ciobănoiu, Adrian Bejenariu, Andrei Marin, Mariana Costache
Medicina.2023; 59(5): 967. CrossRef
Myxoid liposarcoma with cartilaginous differentiation showing DDIT3 rearrangement
Kayo Suzuki, Taketoshi Yasuda, Kenta Watanabe, Takeshi Hori, Masahiko Kanamori, Tomoatsu Kimura
Oncology Letters.2017;[Epub] CrossRef

Case Reports

Adenolipoma of the Skin Arising at Neck Region: Hyun Seung Lee, Yoon Sang Song; Korean J Pathol. 2012;46(6):587-589. Published online December 26, 2012; DOI: https://doi.org/10.4132/KoreanJPathol.2012.46.6.587

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Abstract PDF

We report here a case of adenolipoma of the skin, an unusual variant of lipoma, arising on the neck. A 56-year-old man visited our hospital due to an anterior neck mass. An excisional biopsy was performed. The mass revealed a tan-yellow soft cut surface. We could not find any difference from other lipoma on gross inspection. Microscopically, the mass showed proliferation of mature adipocytes admixed with several eccrine units. The eccrine units were demonstrated by periodic acid-Schiff-positive granules in the secretory portions and by positivity of smooth muscle actin in the myoepithelial cells surrounding the eccrine glands. The tumor was completely excised, and the patient has been followed up without any evidence of recurrence so far.

Citations

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Adenolipoma of the Skin: A Report of 11 Cases
Rawan Amir, Salwa Sheikh
Case Reports in Dermatology.2018; 10(1): 76. CrossRef

Primary Pulmonary Myxoid Liposarcoma with Translocation t(12;16)(q13;p11) in a Young Female Patient: A Brief Case Report: Choonhee Son, Phil Jo Choi, Mee Sook Roh; Korean J Pathol. 2012;46(4):392-394. Published online August 23, 2012; DOI: https://doi.org/10.4132/KoreanJPathol.2012.46.4.392

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Abstract PDF

Primary liposarcoma of the lung is an extremely rare disease. To date, only 14 cases have been reported in the literature. We experienced a case of myxoid liposarcoma of the lung treated by surgery. The tumor was well-defined, solid, lobulated mass measuring 3.5×2 cm, involving the bronchus of the left lower lobe. Microscopically, myxoid liposarcoma was identified. The fluorescence in situ hybridization confirmed the presence of a reciprocal translocation involving DNA damage-inducible transcript 3 (DDIT3) and fused in sarcoma (FUS) genes. The patient is still alive with no recurrence or metastasis at the time of writing this report (on 20 months postoperatively). To our knowledge, this is the first cytogenetic case report of pulmonary myxoid liposarcoma.

Citations

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Primary Liposarcoma of the Spleen: Case Report With Review of the Literature
Elisa M. Wächtershäuser, Gabriele Köhler, Verena Böhmer, Alexander Marx, Achim Hellinger
International Journal of Surgical Pathology.2024;[Epub] CrossRef
Primary intrathoracic liposarcomas: A clinicopathologic and molecular study of 43 cases in one of the largest medical centers of China
You Xie, Wenyi Jing, Wei Zhao, Ran Peng, Min Chen, Ting Lan, Heng Peng, Xin He, Huijiao Chen, Zhang Zhang, Hongying Zhang
Frontiers in Oncology.2022;[Epub] CrossRef
Primary Pulmonary Liposarcoma with Pancreatic Metastasis: A Rarest of Rare Intrathoracic Malignancy
Anirban Halder, Rituparna Biswas, Sujit Shukla, Nisha Rana, Vikas Yadav, Jaspreet Kaur
Indian Journal of Medical and Paediatric Oncology.2020; 41(04): 605. CrossRef
Primary dedifferentiated liposarcoma of the lung with rhabdomyoblastic and chrondroblastic differentiation
Anthony Longano, Alexandra DuGuesclin, Catherine Mitchell
Histopathology.2015; 67(6): 923. CrossRef

Original Article

Diagnostic Value of MDM2 and DDIT3 Fluorescence In Situ Hybridization in Liposarcoma Classification: A Single-Institution Experience: Junhun Cho, Seung Eun Lee, Yoon-La Choi; Korean J Pathol. 2012;46(2):115-122. Published online April 25, 2012; DOI: https://doi.org/10.4132/KoreanJPathol.2012.46.2.115

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Abstract PDF

Background

The amplification of murine double minutes (MDM2) is the primary feature of well-differentiated liposarcomas (WDLPS) and dedifferentiated liposarcomas (DDLPS), while DDIT3 rearrangement is the main one of myxoid liposarcomas (MLPS). Our aim was to evaluate the added value of MDM2 amplification and DDIT3 rearrangement in making a diagnosis and classifying lipogenic tumors.

Methods

Eighty-two cases of liposarcoma and 60 lipomas diagnosed between 1995 and 2010 were analysed for MDM2 amplification and DDIT3 rearrangement using a fluorescence in situ hybridization (FISH). The subtypes of liposarcoma were reclassified according to the molecular results, whose results were reviewed with an analysis of the relevant histologic and immunohistochemical findings.

Results

One case of lipoma (1.67%) was reclassified as a WDLPS. Of the liposarcomas, 13.4% (16/82) were reclassified after the molecular testing. Five cases of MLPS were reclassified as four cases of DDLPS and one case of myxoid lipoma. Two cases of WDLPS were reclassified as one case of spindle cell lipoma and another case of myxofibrosarcoma. Four cases of DDLPS were reclassified as two cases of leiomyosarcoma, one case of angiomyolipoma and another case of fibroinflammatory lesion. Of the six cases of pleomorphic liposarcoma, five were reclassified as DDLPS.

Conclusions

In our series, a critical revision of diagnosis was found at a rate of 3.5% (5/142) after a review of the lipomatous lesions. The uses of molecular testing by MDM2 and DDIT3 FISH were valuable to make an accurate subtyping of liposarcomas as well as to differentiate WDLPS from benign lipomatous tumor.

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Myxoid liposarcoma with nuclear pleomorphism: a clinicopathological and molecular study
Naoki Kojima, Takashi Kubo, Taisuke Mori, Kaishi Satomi, Yuko Matsushita, Shintaro Iwata, Yasushi Yatabe, Koichi Ichimura, Akira Kawai, Hitoshi Ichikawa, Akihiko Yoshida
Virchows Archiv.2024; 484(1): 71. CrossRef
FISH Diagnostic Assessment of MDM2 Amplification in Liposarcoma: Potential Pitfalls and Troubleshooting Recommendations
Alessandro Gambella, Luca Bertero, Milena Rondón-Lagos, Ludovica Verdun Di Cantogno, Nelson Rangel, Chiara Pitino, Alessia Andrea Ricci, Luca Mangherini, Isabella Castellano, Paola Cassoni
International Journal of Molecular Sciences.2023; 24(2): 1342. CrossRef
Expression of CTAG1B clone EPR13780 versus DDIT3 gene rearrangement distinguishes myxoid liposarcoma from its mimics with detection of novel DDIT3 gene copy number variations
Marwa M. Abdelaziz, Hanan Y. Tayel, Amany Abdel-Bary, Omnia M. Badawy
Journal of Histotechnology.2022; 45(2): 56. CrossRef
Musculoskeletal Tumors
Amit Singla, David S. Geller
Pediatric Clinics of North America.2020; 67(1): 227. CrossRef
Vulvar Myxoid Liposarcoma, an Extremely Rare Diagnosis: A Case Report and Review of Literature
Ligia Redroban, Nelson Montalvo
International Journal of Gynecological Pathology.2019; 38(1): 17. CrossRef
Molecular updates in adipocytic neoplasms✰
Elizabeth G. Demicco
Seminars in Diagnostic Pathology.2019; 36(2): 85. CrossRef
Application of MDM2 Fluorescence In Situ Hybridization and Immunohistochemistry in Distinguishing Dedifferentiated Liposarcoma From Other High-grade Sarcomas
Min Jeong Song, Kyung-Ja Cho, Jong-Seok Lee, Joon Seon Song
Applied Immunohistochemistry & Molecular Morphology.2017; 25(10): 712. CrossRef
FluorescenceIn SituHybridization forMDM2Amplification as a Routine Ancillary Diagnostic Tool for Suspected Well-Differentiated and Dedifferentiated Liposarcomas: Experience at a Tertiary Center
Khin Thway, Jayson Wang, John Swansbury, Toon Min, Cyril Fisher
Sarcoma.2015; 2015: 1. CrossRef

Case Reports

Lipofibromatosis: A Case Report.: Tae Eun Kim, Tae Jung Kim, Youn Soo Lee, Chang Suk Kang, Sang In Shim, Kyo Young Lee; Korean J Pathol. 2011;45(1):106-110.; DOI: https://doi.org/10.4132/KoreanJPathol.2011.45.1.106

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Abstract PDF: Lipofibromatosis is a recently described rare benign fibrofatty tumor of childhood. It typically forms as an ill defined, slowly growing, painless mass. We present here the case of lipofibromatosis that occurred in a 21-year-old male who had complained of a bulging enlarged mass involving the right thigh and prepatella area for the previous 1 year. Magnetic resonance imaging showed an ill-defined reticular infiltration in the subcutaneous layer with subtle linear enhancement and high T2 signal intensity. The mass was surgically excised and it displayed an 11.0x5.5x1.5 cm-sized adipose appearance without encapsulation. Microscopically, the tumor was composed of alternating streaks of mature adipose tissue and a fibroblastic component that mainly involved the septa of adipose tissue. On immunohistochemical study, the fibroblastic component was positive for S-100, CD99, CD34, actin and bcl-2. He has shown an eventful recovery for 6 months after surgery.

Pure Uterine Lipoma, a Very Rare Benign Tumor.: Elif Ulker Akyildiz, Sema Ozuysal, Akgul Arici, Mehmet Aral Atalay; Korean J Pathol. 2010;44(6):679-681.; DOI: https://doi.org/10.4132/KoreanJPathol.2010.44.6.679

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Abstract PDF

Pure lipomas of the uterus are very rare tumors that may be misdiagnosed on radiological examination due to their rarity and fat content. We present here the case of a 57-year-old postmenopausal woman who presented to the hospital with lower abdominal pain. Abdominal hysterectomy and bilateral salpingo-oophorectomy were performed under the prediagnoses of benign cystic ovarian teratoma or leiomyoma. On the histopathological examination of tissue samples, the tumor was composed of mature fat cells. There were a few smooth muscle cells confined to the periphery. Pure uterine lipoma may be asymptomatic or it may have symptoms similar to those of leiomyoma such as vaginal bleeding or pelvic pain. A pure lipoma should be diagnosed only if smooth muscle cells are confined to the periphery.

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Coexistence of uterine lipoma, leiomyoma and endometrial polyp
Nilgün SÖĞÜTÇÜ, Nazlı Sena ŞEKER
Cukurova Medical Journal.2019; 44(3): 1139. CrossRef

Thymofibrolipoma: A Brief Case Report.: Gu Hyun Kang, Joungho Han, Tae Sung Kim, Yong Soo Choi, Sang Won Um; Korean J Pathol. 2010;44(3):338-340.; DOI: https://doi.org/10.4132/KoreanJPathol.2010.44.3.338

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Abstract PDF

Thymofibrolipoma is an extremely rare tumor in the anterior mediastinum, and represents a histologic variant of the usual thymolipoma. Herein, we report a case of thymofibrolipoma in a 9-year-old girl who had a huge mass with fatty attenuation in the right hemithorax on chest computed tomography. She denied any subjective symptoms except mild fever. The surgically resected tumor was ovoid, soft and well-encapsulated, measuring 9.0 x 7.5 x 7.0 cm. The cut surface was light tan in color with yellowish streaks. Microscopically, two distinct areas were admixed in different proportions. One consisted of normal thymic tissue with subinvoluted features and the other was composed of extensive areas of collagenous tissue interspersed in mature adipose tissue. In a high power view, there were thin strands of remnant thymic epithelial cells, separating the pseudolobules. Thymofibrolipoma should be distinguished from other benign or malignant conditions, occurring in the anterior mediastinum, so that unnecessary treatment can be avoided.

Citations

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Unusual thymoma subtypes
Michael A. den Bakker
Diagnostic Histopathology.2023; 29(2): 105. CrossRef
Thymofibrolipoma: a case report and review of the literature
Ryu Jokoji, Emiko Tomita
Diagnostic Pathology.2022;[Epub] CrossRef
Thymoangiolipoma: A rare histologic variant of thymolipoma in a patient with myasthenia gravis
Mohammad Hossein Anbardar, Fatemeh Amirmoezi, Armin Amirian
Rare Tumors.2020;[Epub] CrossRef

Original Article

The Expression of Apolipoprotein D in Hepatocellular Carcinoma.: Hongxiu Han, Chan Kum Park; Korean J Pathol. 2010;44(2):187-190.; DOI: https://doi.org/10.4132/KoreanJPathol.2010.44.2.187

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Abstract PDF: BACKGROUND
Apolipoprotein D (Apo D) has recently been identified as a novel tumor suppressor gene. Apo D may have a profound effect on the carcinogenesis and progression of hepatocellular carcinoma. This study was designed to evaluate the expression of Apo D in hepatocellular carcinoma and to investigate the relationship between the expression of Apo D and the clinicopathological characteristics and the patients' survival.
METHODS
An immunohistochemical study was performed on the tumors and tissues from 43 hepatocellular carcinoma (HCC) patients with controls to determine the expression of Apo D protein.
RESULTS
Our data showed that a higher expression of Apo D was seen in 10 of 43 cases (23.3%), while a lower and no expression of Apo D was observed in 28 of 43 cases (65.1%) and 5 of 43 cases (11.6%), respectively. A reduced expression of Apo D was correlated with the tumor stage (p = 0.037) and tumor size (p = 0.017). However, the patients' 5-year survival was not associated with the expression of Apo D (p = 0.903).
CONCLUSIONS
The results suggest that a reduced Apo D protein expression may play an important role in HCC progression as associated with the tumor stage and size, but it does not affect the survival of HCC patients.

Case Report

Spindle Cell/Pleomorphic Lipoma of the Oropharynx.: Mi Jin Gu, Kyung Rak Sohn, Jun Ho Park; Korean J Pathol. 2009;43(6):580-582.; DOI: https://doi.org/10.4132/KoreanJPathol.2009.43.6.580

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Abstract PDF

We report a rare case of spindle cell/pleomorphic lipoma of the oropharynx. A 45-year-old woman presented with a 9-month history of a lump in 2001. A well demarcated polypoid, rubbery mass was found in the left vallecula and was surgically removed. The mass was diagnosed as a spindle cell lipoma. She revisited with the same complaint in 2008. Examination revealed another polypoid mass at the left aryepiglottic fold, near the previous excision site. The excised mass histologically consisted of mature fat cells, numerous bizarre giant cells, and bland spindle cells, features of a typical pleomorphic lipoma. This is the first case of recurrent oropharyngeal spindle cell/pleomorphic lipoma, showing histologic changes during the recurrence. Complete removal and follow-up are necessary for the treatment of this uncommon neoplasm.

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A Case of Spindle Cell Lipoma on Nasal Dorsum of Nose
Ki Jin Kwon, Tae Hoon Kim, Sun Kyu Lee, Kun Hee Lee
Korean Journal of Otorhinolaryngology-Head and Neck Surgery.2021; 64(1): 26. CrossRef
Un lipome rétropharyngé de présentation clinique inhabituelle
Anne Guyot, Jean-Marc Prechoux, Sylvain Cherrière, Jean-Pierre Bessede, Isabelle Pommepuy, Bema Coulibaly
Annales de Pathologie.2015; 35(4): 372. CrossRef
Retropharyngeal Spindle Cell/Pleomorphic Lipoma
Hyun Kyung Lee, Seung Bae Hwang, Gyung Ho Chung, Ki Hwan Hong, Kyu Yun Jang
Korean Journal of Radiology.2013; 14(3): 493. CrossRef

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