Journal of Pathology and Translational Medicine

Original Articles

Aurora Kinase A Is a Prognostic Marker in Colorectal Adenocarcinoma: Hyun Min Koh, Bo Geun Jang, Chang Lim Hyun, Young Sill Kim, Jin Won Hyun, Weon Young Chang, Young Hee Maeng; J Pathol Transl Med. 2017;51(1):32-39. Published online December 25, 2016; DOI: https://doi.org/10.4132/jptm.2016.10.17

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Background
Aurora kinase A (AURKA), or STK15/BTAK, is a member of the serine/threonine kinase family and plays important roles in mitosis and chromosome stability. This study investigated the clinical significance of AURKA expression in colorectal cancer patients in Korea.
Methods
AURKA protein expression was evaluated by immunohistochemistry in 151 patients with colorectal adenocarcinoma using tissue microarray blocks. We analyzed the relationship between clinicopathological characteristics and AURKA expression. In addition, the prognostic significance of various clinicopathological data for progression-free survival (PFS) was assessed. Also we evaluated copy number variations by array comparative genomic hybridization and AURKA gene amplification using fluorescence in situ hybridization in colorectal carcinoma tissues.
Results
AURKA gene amplification was found more frequently in the 20q13.2–13.33 gain-positive group than the group with no significant gain on the AURKA-containing locus. AURKA protein expression was detected in 45% of the cases (68/151). Positive staining for AURKA was observed more often in male patients (p = .035) and distally located tumors (p = .021). PFS was shorter in patients with AURKA expression compared to those with low-level AURKA expression (p < .001). Univariate analysis revealed that AURKA expression (p = .001), age (p = .034), lymphatic invasion (p = .001), perineural invasion (p = .002), and TNM stage (p = .013) significantly affected PFS. In a multivariate analysis of PFS, a Cox proportional hazard model confirmed that AURKA expression was an independent and significant prognostic factor in colorectal adenocarcinoma (hazard ratio, 3.944; p < .001).
Conclusions
AURKA could serve as an independent factor to predict a poor prognosis in Korean colorectal adenocarcinoma patients.

Citations

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Xia Li, Jingjing Li, Jie Li, Nannan Liu, Liwei Zhuang
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Peter Jung, David Horst, Thomas Kirchner, Frederick Klauschen, Jens Neumann
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Therapeutic Potential of Mitotic Kinases’ Inhibitors in Cancers of the Gastrointestinal System
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Type and Incidence of Soft Tissue Sarcomas in Korea: 2001-2007.: Kyung Un Choi, Hae Youn Kang, Heasoo Koo, Mi Seon Kwon, Dong Hoon Kim, Mi Jung Kim, Su Jin Kim, Young Sill Kim, Chul Hwan Kim, Yong Koo Park, Hye Rim Park, Seung Sam Paik, Jin Young Yoo, Anhi Lee, Jae Hyuk Lee, Hyekyung Lee, Kyu Yun Jang, Young Chae Chu, Joon Hyuk Choi; Korean J Pathol. 2011;45(6):557-563.; DOI: https://doi.org/10.4132/KoreanJPathol.2011.45.6.557

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Abstract PDF

BACKGROUND
The Korean Bone and Soft Tissue Pathology Study Group of the Korean Society of Pathologists conducted a nationwide retrospective analysis of soft tissue sarcoma (STS) to provide the clinicopathologic characteristics of STS within the population of the Republic of Korea.
METHODS
The cases of STS were collected during a 7-year period (2001-2007) from 19 institutes in Korea. All cases were classified according to the histologic criteria proposed by the World Health Organization. Clinicopathologic data were reviewed.
RESULTS
Data from 722 patients (median age, 50 years) were collected. Data showed a slight male predominance. The most frequent types of STS in decreasing order were liposarcoma, malignant fibrous histiocytoma, leiomyosarcoma, and synovial sarcoma. STS occurred throughout the body, although approximately half (47.8%) were located in the extremities. The majority of STS was histologically classified as high grade with a large tumor size (>5 cm). The overall survival rate for the patients was 76.3% (median follow-up time, 26 months; range, 1 to 89 months). Histologic grade, tumor size, American Joint Committee on Cancer stage, tumor site, and resection status were prognostic. Significant independent adverse prognostic factors were large tumor size (>5 cm) and tumor site other than extremities.
CONCLUSIONS
We reported the distribution and characteristics of STS in the Republic of Korea.

Citations

Citations to this article as recorded by

Distribution and survival of primary sarcoma in Korea: A single center analysis of 2017 cases
Sung Jun Jo, Kyeong Sik Kim, Kyo Won Lee, Jae Berm Park, Yoon-La Choi, Jeong Il Yu, Su Jin Lee, Dong Il Choi, Sung Joo Kim
Korean Journal of Clinical Oncology.2018; 14(1): 30. CrossRef

Case Reports

Desmoplastic Trichoepithelioma: A case report.: Jean A Kim, Young Sill Kim, Seok Jin Kang, Sun Moo Kim; Korean J Pathol. 1996;30(9):865-867.

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Abstract PDF: Desmoplastic trichoepithelioma is a solitary tumor of the hair follicle with female preponderance, most commonly located on the face. Clinically, the lesions appear annular and firm with a raised border and a depressed nonulcerated center, but the appearance is not so distinctive to hair follicle tumors that definite diagnosis is established by the histopathologic findings. We report a case of desmoplastic trichoepithelioma in a 67-year-old woman who had an asymptomatic, hard, annular lesion measuring 0.8 cm in diameter, with a raised border and a depressed center on the right cheek. Histopathologic findings showed narrow strands of basaloid cells, horny cysts, and desmoplastic stroma, with the features corresponding to the desmoplastic trichoepithelioma.

Pulmonary Pseudallescheriasis: A case report and Histopathologic Comparision with Pulmonary Aspergillosis.: Young Sill Kim, Chang Suk Kang, Kyung Ja Han, Kyo Young Lee, Sang In Shim, Young Shin Kim; Korean J Pathol. 1998;32(2):147-149.

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Abstract PDF: Infection by pseudallescheria boydii is an occasional cause of mycetoma, corneal ulcers, endophthalitis, sinusitis, pneumonia, endocarditis, meningitis, arthritis, and osteomyelitis. But, it also causes serious disseminated or localized infection in immunocompromised patients. We report a case of pulmonary pseudallescheriasis developed in a 32-year-old man who has been a sofa manufacturer for several years. He presented with a cystic mass in the lung, 5cm in the largest dimension. Dark green necrotic material was evacuated from the cavity. Microscopically, the cystic wall and adjacent lung parenchyme were infiltrated by histiocytes rather than eosinophils and there was little fibrosis in the wall. The P. boydii was isolated from the cystic contents, which revealed white floccose colonies in Sabouraud dextrose agar and revealed single or multiple-celled oval conidia being produced on short hyalinated hyphae and on the elongated annellides in the slide culture. The differential findings with aspergillosis are discussed.

Original Articles

Expression of bcl-2 Protein in Gastric Adenoma and Adenocarcinoma.: Young Sill Kim, Byung Kee Kim, Sang In Shim; Korean J Pathol. 1998;32(4):248-254.

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Abstract PDF: The bcl-2 oncoprotein confers a survival advantage to cells by blocking programmed cell death. Overexpression of bcl-2 probably plays a role in tumorigenesis, and the expression of the bcl-2 protein has been investigated in many kinds of tumors. However, there have been only a few reports on expression of bcl-2 in human gastric adenocarcinoma. The aim of this study was to investigate the relationship between the expression of bcl-2 protein and several clinical and pathological parameters such as age, tumor site, size, histological type, depth of invasion, Lauren's classification, and grade. Immunohistochemical staining using monoclonal bcl-2 protein antibody, clone 124, was performed on paraffin embedded specimens from 23 gastric adenomas and from 45 gastric adenocarcinomas. The results are as follows. 1. Variable intensity of epithelial staining was noted from case to case, although the lymphocytic component showed similar intensity in all examples. The staining was located at the gland and mucous neck region of non-neoplastic epithelium. 2. The more differentiated type of gastric adenocarcinoma showed the higher expression rate and intensity. 3. The relationship between the expression rates of bcl-2 protein and tumor grade (adenoma early gastric adenocarcinoma advanced gastric adenocarcinoma) was statistically significant. The reactivity in adenoma was somewhat stronger with a uniform pattern, while in adenocarcinoma it was much weaker with a heterogenous pattern. 4. Intestinal type carcinomas by Lauren's criteria showed a higher expression rate and intensity than diffuse type. These results suggest that the bcl-2 expression would be found in the early phase of gastric tumorigenesis, and the expression rate and intensity would decrease according to the tumor progression.

Fine Needle Aspiration Cytology of Pulmonary Hamartoma: A Report of Two Cases.: Jeana Kim, Kyoung Mee Kim, Young Sill Kim, An hi Lee, Sang In Shim, Byung Kee Kim; Korean J Cytopathol. 2000;11(1):31-34.

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Abstract PDF: Pulmonary hamartoma is an uncommon benign tumor consisting of a mixture of loose fibromyxoid tissue, cartilage, fat, and cleft-like spaces lined by cuboidal or ciliated epithelium. Cytologically, the presence of a mesenchymal component is essential for the diagnosis of pulmonary hamartoma. We report the fine needle aspiration cytologic findings of two cases of pulmonary hamartoma. Case 1 was a 71-year-old woman with a mass, measuring 1.8X1.5 cm in the upper lobe of the right lung. Case 2 was a 51-year-old woman with a mass, measuring 2.3 x 2.0 cm in the lower lobe of the right lung. Fine needle aspiration cytology of both pulmonary masses revealed several sheets of loose fibromyxoid tissue fragments with focal cartilaginous differentiation and a few clusters of bland cuboidal epithelial cells on the bloody background. The diagnosis was histologically confirmed by needle biopsy.

Case Reports

Fine Needle Aspiration Cytology of Solid Type Adenoid Cystic Carcinoma of Buccal Mucosa: A Case Report .: Jeana Kim, Kyoung Mee Kim, Young Sill Kim, Anhi Lee, Sang In Shim, Byung Kee Kim; Korean J Cytopathol. 2000;11(2):89-92.

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Abstract PDF: Adenoid cystic carcinoma constitutes 4 percent of all benign and malignant epithelial salivary gland tumors and is a highly malignant tumor of the salivary glands. The cytologic presentation in aspirates is usually characteristic with spherical clusters(balls) of small tumor cells filled with hyaline material. But in case of the poorly differentiated variety(solid type), it is difficult to differentiate from other tumors because sheets of small, fairly monotonous malignant cells, with somewhat larger and more conspicuous nuclei are only seen. The cytologic findings of fine needle aspiration of solid type adenoid cystic carcinoma of buccal mucosa in a 51-year-old man are presented. On cytologic findings, solid sheets of monotonous tumor cells with focal necrosis was noted on a hemorrhagic background and the characteristic cytologic features of adenoid cystic carcinoma was absent.

Congenital Intracranial Teratoma with Extension into Oral Cavity: An autopsy case.: Young Sill Kim, Kyo Young Lee, Chang Suck Kang, Sang In Shim, Sun Moo Kim; Korean J Pathol. 1990;24(3):326-330.

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Abstract PDF: Intracranial teratomas which were first described by Maier in 1861 are uncommon. Those presenting at birth are very rare and in our knowledge no case has been reported in Korea. In November, 1988, we experience a case of congenital intracrainal teratoma which replaced almost all cerebral tissue, filled out the oral cavity, and was protruded from the mouth. A female fetus was artificially delivered by a 25-year-old primigravida at 22 weeks of gestation, because of marked hydramnios and fetal hydrocephalus which were detected by prenatal ultrasonography. Microscopically, tissues from all three germ layers, including a lot of neuroepithelim and primitive mesenchymal tissue, were shown. A brief review of the literature was done.

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