- Microcystic Meningioma: A case report.
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Gyeong Sin Lee, Il Seon Lee, Bang Hur, Man Ha Hur
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Korean J Pathol. 1994;28(2):185-190.
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- Microcystic meningioma, a distinct morphological variant of meningiomas, is histologically characterized by a vacuolated appearance with multiple cystic spaces lined by vacuolated or stellate-shaped tumor cells. We report a case of microcystic meningioma occuring in right frontoparietal area of 42-year-old woman, with emphasis on differential diagnosis, along with a review of literatures.
Immunohistochemically, most of the tumor cells demonstrated positive immunoreactivity for both epithelial membrane antigen and vimentin. Electron microscopy showed that the extracellular space was extensive, where eletron-lucent material was occasionally seen. The tumor cells had long cytoplasmic processes showing complex interdigitation and a large number of desmosomes.
- Pulmonary Adenocarcinoma of Fetal Type: Report of a case.
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Soon Bong Chung, Il Seon Lee, Hee Kyung Chang, Bang Hur, Man Ha Huh
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Korean J Pathol. 1992;26(2):186-190.
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- Adenocarcionma of fetal type is in lung is a newly recognized malignant tumor sharing morphologic features with the epithelial component of the pulmonary blastoma devoid of sarcomatous component. We present a case of adenocarcinoma of fetal type in a 28-year-old female, consisting of numerous branching tubules or glands and morula-like epithelial complexes. Histologically, the tubules and glands were composed of glycogne-rich nonciliated epithelial cells showing in part argyrophilia. Some of tubular and morula-like epithelial cells revealed immunoreactivity for neuron-specific enolase. We report this case with a review of literatures with special references on the histogenisis.
This report is the pathologically confirmed second case of the pulmonary adenocarcinoma of fetal type in Korea, following the report of Cho and Lee, 1990.
- Uterine Tumor Resembling Ovarian Sex-Cord Tumor: A case report.
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Il Seon Lee, Soon Bong Chung, Bang Hur, Man Ha Huh
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Korean J Pathol. 1992;26(2):180-185.
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- The authors report a case of uterine tumor resembling ovarian sex-cord tumor in a 31-year-old woman with emphasis on immunohistochemistry. Histologically this case showed identical features to a well-recognized endometial stromal tumor except for focal epithelial-like differentiation that resembled sex-cord tumors of the ovary. The sex-cord like differentiation of tumor cells were manifested by trabeculae, plexiform cords, and gland-like pattern. We diagnosed this case, according to the features described by Clement and Scully(1976), as uterine tumor resembling ovarian sex-cord tumor, group I. Although the histogenesis of this tumor is unclarified, most authors believe that this tumor may be originated from multipotent mesenchymal cells of the uterus. On immunohistochemical stains, Desmin was uniformly reactive in epithelial-like cells and in focal areas of endometrial stromal sarcoma-like component.
Vimentin was partly reactive in all tumor components, however EMA was non-reactive.
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