- Prostatic Tissue in Ovarian Mature Cystic Teratoma: A case report.
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Seung Mo Hong, Mi Sun Choe, Eun Mee Han, Hun Kyung Lee, Jae Y Ro
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Korean J Pathol. 1999;33(7):525-528.
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- Ovarian mature cystic teratoma containing benign prostatic tissue is rare and only 11 cases have been reported in the literature to date.
We report a case of mature cystic teratoma of the ovary containing prostatic tissue. A 23-year-old female patient came to our hospital complaining of irregular menstruation for 3 months. Her menarche had occurred when she was 13 years old. The patient showed no evidence of virilization nor of endocrinopathy. A goose-egg-sized mass was palpable in the left lower abdomen on physical examination. Ultrasonography revealed a cystic ovarian mass with internal echogenecity. Microscopic finding was consistent with that of usual mature cystic teratoma except for a 1.5 cm focus of prostatic and bladder tissues. Prostatic tissue demonstrated strong immunoreactivity for prostatic specific antigen (PSA), prostatic alkaline phosphatase (PAP) and cytokeratin 7. Basal cells of the prostate glands were positive for high molecular weight cytokeratin (34betaE12).
Although ovarian mature cystic teratoma containing prostatic tissue has been reported as a rare occurrence, a careful examination with immunohistochemical staining may increase the detection of prostatic tissue in mature cystic teratoma of the ovary.
- Histopathologic Analysis of Helicobacter pylori-associated Chronic Gastritis between cagA-positive and cagA-negative Strains.
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Hun Kyung Lee, Gyeong Hoon Kang, Hwoon Yong Jung, On Ja Kim
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Korean J Pathol. 1998;32(7):504-510.
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Abstract
- Infection with Helicobacter pylori (H. pylori) leads to gastritis, but the majority of infected persons are asymptomatic, and it has been recently described that the ability of H. pylori to cause more severe disease is related to the presence of the cytotoxin-associated gene A (cagA).
We investigated the prevalence of cagA-bearing strains in a group of H. pylori-positive gastritis, and compared the morphologic differences between cagA-positive and cagA-negative cases on H&E stained slides. Polymerase chain reaction (PCR) assays for detection of H. pylori and cagA of 62 gastric biopsy specimens were performed. All the slides were analyzed by the updated Sydney system. Forty eight (77.4%) were PCR positive for H. pylori and thirty four (54.8%) were positive for cagA. There were no significant differences in numbers of H. pylori, degree of infiltration of mononuclear cells and degree of atrophy between cagA-positive and cagA-negative groups. The rates of neutrophilic infiltration and intestinal metaplasia were significantly higher in cagA-positive group than in cagA-negative group. In conclusion, the detection of H.
pylori by PCR method is more sensitive than that of microscopic examination and H. pylori strains possessing cagA are associated with an enhanced induction of severe gastritis.
- Solitary Fibrofolliculoma: A case report.
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Hun Kyung Lee, Lee So Maeng, Seok Jin Kang, Soo Il Chung, Sun Moo Kim
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Korean J Pathol. 1996;30(5):460-462.
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- The clinical and pathological features of solitary fibrofolliculoma are presented. Solitary fibrofolliculoma is very rarely encountered and to our knowledge, only 7 cases have been reported in the Western literature and no cases have been published in Korea. We experienced a case of solitary fibrofolliculoma occurring in a 56-year-old female, who had a 1.0 cm-sized and slowly growing nodule on her chin. A brief review of the literature, was made especially in relation to the pathological findings and histogenesis of solitary fibrofolliculoma.
- Cytologic Features of Gaucher's Disease in the Spleen: A case Report.
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Hun Kyung Lee, Gyeong Shin Park, Young Shin Kim, Kyo Young Lee, Chang Suk Kang, Sang In Shim
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Korean J Cytopathol. 1996;7(1):79-83.
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- Gaucher's disease is an autosomal recessive disorder resulting fror i mutation at the glucocerebrosidase locus on chromosome 1q21. As a result, glucocerebroside accumulates principally in the phagocytic cells known as Gaucher ce Is.
In our case, a five-year old girl was admitted with seven days history of fever and abdominal distension. At physical examination the patient had hepatosplenomegaly. Laboratory tests revealed a hemoglobin concentration of 2.8g/L: platelet counts of 23,0001?l: normal range of white cell and differential counts, and negative Coombs' test. Liver enzymes were normal. For the evaluation of hepatosplenomegaly, fine needle aspiration was aerformed blindly against the palpable spleen. Wet-fixed hematoxylin and eosin-stained smears are made. The smears from the spleen showed predominantly macrophages with abundant cytoplasm and rather small, uniform, often eccentric nuclei with small nucleoli. The multinucleated cells were often found. The cytoplasm was pale, with more or less distinct fibrillarity. The cells had the characteristic appearance of Gaucher cells. Gaucher cells were also found it the tissue section from the liver, spleen and lymph node and the bone marrow aspirate. The diagnosis was later confirmed by determination of beta-glucosidase activity in peripheral blood leucocytes. Fine needle aspiration of the spleen is considered as a convenient procedure with a low complication rate for the diagnosis of lysosomal storage disease.
- Well-Differentiated Thymic Carcinoma, Spindle Cell Type, Arising from Anterior Mediastinum: A case report.
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Hun Kyung Lee, Yeong Jin Choi, Seok Jin Kang, Byung Kee Kim, Sun Moo Kim, Sang In Shim
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Korean J Pathol. 1995;29(6):800-803.
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- Well differentiated thymic carcinoma(WDTC) was recently separated from cortical thymoma. It is characterized by a predominance of epithelial cells with usually low mitotic rate, an epidermoid differentiation with slight to moderate cytologic atypia and lobular growth pattern. In recent reports, an uncommon spindle cell variant of WDTC, which is composed of spindle shaped epithelial cells, has been described. We investigated an unusual case of WDTC consisted of purely spindle shaped epithelial cells in a 66-year-old female. Radiologically, the well demarcated mass was located in the anterior mediastinum with focal invasion into the surrounding left upper lung. The tumor, 10 x 8 x 5 cm, was encapsulated with thin fibrous tissue and showed a pale yellow solid and lobulated cut surface. Microscopically, it consisted of solid sheets of purely spindle shaped epithelial cells with mild atypism, a low mitotic rate and focal epidennoid differentiation.
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