- Fine Needle Aspiration Cytology of the Intraductal Papillary Mucinous Tumor of the Pancreas: A Case Report.
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In Gu Do, Jae Hoon Park, Youn Wha Kim, Ju Hie Lee, Moon Ho Yang, Sung Wha Hong, Yong Koo Park
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Korean J Cytopathol. 2003;14(2):91-95.
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- Intraductal papillary mucinous tumor of the pancreas is characterized by intraductal papillary proliferation of mucin-producing epithelial cells with or without excessive mucin secretion. According to the degree of epithelial dysplasia, intraductal papillary mucinous tumor is classified into adenoma, borderline tumor, and carcinoma. We recently experienced a case of fine needle aspiration cytology of the intraductal papillary mucinous adenoma in a 69-year-old male. The fine needle aspiration cytology yielded flat sheets of columnar, mucin containing epithelial cells in the background of dense mucin containing degenerated cellular material and histiocytes.
- Pulmonary Lymphangioleiomyomatosis and Micronodular Pneumocyte Hyperplasia associated with Tuberous Sclerosis: A Case Report.
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Gou Young Kim, Juhie Lee, Yong Koo Park, Youn Wha Kim, Jae Hoon Park, Moon Ho Yang
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Korean J Pathol. 2002;36(1):51-54.
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- Lymphangioleiomyomatosis (LAM) is characterized by a hamartomatous proliferation of smooth muscle cells in the lung, mediastium, and abdomen. In the lung, an abnormal proliferation of smooth muscle is seen along the airways, blood vessels, and lymphatics, resulting in honeycombing of the lung. It occurs in 0.1-1% of tuberous sclerosis (TSC) patients. Micronodular pneumocyte hyperplasia (MNPH) is a rare but distinctive pulmonary manifestation of TSC, and appears to be a hamartomatous proliferation of the type II pneumocytes. We report a case of pulmonary LAM and MNPH associated with TSC and bilateral renal angiomyolipoma in a 26-year-old woman. Immunohistochemically, the spindle cells of LAM were positive for HMB-45, but the type II pneumocytes of MNPH were negative.
- Inflammatory Myofibroblastic Tumor of the Mesentery: A case report.
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Sung Jig Lim, Gou Young Kim, Jae Hoon Park, Youn Wha Kim, Yong Koo Park, Ju Hie Lee, Moon Ho Yang
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Korean J Pathol. 1999;33(9):729-732.
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- Inflammatory myofibroblastic tumor or inflammatory pseudotumor is characterized by spindle cell proliferation with inflammatory cell infiltration, predominantly plasma cells and lymphocytes. We have experienced a case of inflammatory myofibroblastic tumor of the mesentery in a 57-year-old male patient with intermittent abdominal pain. On computer tomography, a well demarcated mass was seen in the mesenteric side of the ascending colon. Right hemicolectomy was performed under the impression of the metastatic tumor of lymph nodes. Grossly, a rather well-circumscribed gray white mass was noted in the mesentery of the ascending colon.
Microscopically, the lesion consisted of plump spindle cells and accompanying inflammatory cellular infiltrates. The spindle cells were positive for vimentin.
- A Sialoblastoma Associated with a Hepatoblastoma: An autopsy case report.
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Sun Lee, Youn Wha Kim, Jae Hoon Park, Yong Koo Park, Ju hie Lee, Moon Ho Yang
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Korean J Pathol. 1997;31(11):1222-1226.
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- Sialoblastoma is defined as a rare, congenital or perinatal, aggressive and potentially low-grade malignant, basaloid gland neoplasm that occurs in the major salivary glands. We report a case of a congenital sialoblastoma in the left parotid gland, associated with a hepatoblastoma in a female infant. At birth, a huge mass in the left neck and hepatomegaly were noted. Grossly, the neck mass was well-circumscribed, lobulated and gray tan. Microscopically, the tumor was composed of basaloid aggregates of primitive uniform cells with focal ductal differentiation. The liver showed a well-circumscribed gray tan tumor with extensive hemorrhage and cystic change. Microscopically, the liver revealed characteristic findings of hepatoblastoma. To the best of our knowledge, this is the first case of coexistence of a congenital sialoblastoma and a hepatoblastoma, reported in the literature.
- Cytopathology of Hurthle Cell Adenoma: A Cese Report by Fine Needle Aspiration.
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Bohng Hee Kim, Myoung Suk Kang, Jae Hoon Park, Youn Wha Kim, Yong Ku Park, Ju Hie Lee, Moon Ho Yang
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Korean J Cytopathol. 1995;6(2):193-198.
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- The increased use of thyroid fine needle aspiration (FNA) has refocused on Hurthle cell lesions. The cytologic diagnosis of Hurthle cell tumor is a challenge due to the presence of Hurthle cells in non-neoplastic lesions and the inability to differentiate between benign and malignant Hurthle cell tumor. We report a case of Hurthle cell adenoma(HCA) in a 68-year old woman, with reivew of the cytopathologic findings. FNA revealed losely cohesive or sheets of sheets of large oval to polygonal Hurthle cells containing bundant granular cytoplasm. The histopathologic examination confirmed the diagnosis of HCA with follicular growth pattern, Ultrastructurally, the cytoplasm was packed with variable sized mitochondria.
- Cytologic Features of Papnicolaou Smears of Malignant Melanoma Arising in Vagina: A Cese Report.
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Myung Suk Kang, Bohng Hee Kim, Jae Hoon Park, Youn Wha Kim, Yong Koo Park, Ju Hie Lee, Moon Ho Yang
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Korean J Cytopathol. 1995;6(2):209-214.
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- Primary malignant melanoma of vagina is a rare tumor which is easily misinterpretated in routine cytologic examination.
We lately experienced a case of primary malignant melanoma of the vagina with direct cervical extension diagnosed by Pap smear. The cervicovaginal smear showed variable sized clusters of epithelial cells or singly scattered abnormal epithelial cells. Most of the tumor cells had round hyperchromatic nuclei with prominent nucleoli and brownish pigments in cytoplasm. The cytologic findings are compared with histologic features of resected specimen.
- Inflammatory Pseudotumor of the Liver: A case report.
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Young Hee Maeng, Jae Hoon Park, Youn Wha Kim, Yong Koo Park, Ju Hie Lee, Moon Ho Yang
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Korean J Pathol. 1994;28(1):90-92.
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- Inflammatory pseudotumor of the Aver is a rare benign lesion that usually has been discovered at laparotomy. This lesion is inflamrhatory and reactive, but the etiology remains unknown. In-flammatory pseudotumor of the liver is of the interest not only because of its rarity also because it needs to be clinically differentiated from hepatocellular carcinoma and other malignant tu-mors. In this report, we describe a case of inflammatory pseudotumor of the liver with fever and weight loss in a 46-year-old male. Grossly, the lesion showed a rather well demarcated, gray white to pale yellowish nodular mass mesuring 7 x 5.5 x 5 cm in dimensions. M icroscqpically, the tumor was composed of diffuse infiltration of predominantly plasma cells, lymphocytes and histocytes associated with fibroblastic proliferation.
- Lipoleiomyoma of the Uterus: A case report.
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Myung Sook Kang, Young Hee Maeng, Jae Hoon Park, Yun Wha Kim, Ju Hee Lee, Moon Ho Yang
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Korean J Pathol. 1993;27(5):535-537.
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- A rare case of uterine lipoleiomyoma is reported with presentation of computed tomography, histomorphologic and immunohistochemical findings. This tumor is predominantly lipomatous with an admixture of smooth muscle fiber and hyalinized fibrous tissue. Immunohistochemical study revealed a positive reaction of S-100 protein in fat cells and desmin in smooth muscle fibers. Its histogenesis also has been discussed.
- Cystic Meningioma: A case report.
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Jae Hoon Park, So Yeon Yu, Youn Wha Kim, Yong Koo Park, Moon Ho Yang
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Korean J Pathol. 1991;25(2):153-157.
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- Meningiomas are usually thought of as firm solid tumors and most standard references make no mention of cystic meningiomas. Although several cases of cystic meningioma have been reported in the literature and their neuroradiological features discussed, the rarity of this entity makes its preoperative diagnosis difficult. Recently, the authors encountered a case of cystic meningioma, which was thought as ependymal cyst or infarction, preoperatively.
In this report the authors discussed its clinical, neuroradiological and pathological characteristics with brief reviews of the literature.
- Xanthogranulomatous Cholecystitis: 3 cases report.
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Jae Hoon Park, Youn Wha Kim, Yong Koo Park, Ju Hie Lee, Moon Ho Yang
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Korean J Pathol. 1991;25(1):41-44.
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- Xanthogranulomatous cholecystitis is a rare form of inflammatory disease of the gall bladder and was first described in 1970 by Christensen and Ishak as fibroxanthogranulomatous inflammation of the gall bladder.
Recently authors experienced three cases of xanthogranulomatous cholecystitis, two of which were erroneously diagnosed as malignant tumor in preoperative clinical and radiological examinations. Grossly, the gallbladders were enlarged and the walls were thickened with yellowish granular necrotic areas ranging from a few millimeters to 1.0 cm in diameter. Microscopically, all of three cases showed diffuse infiltration of the foamy histiocytes containing bile pigments and mononuclear leukocytes associated with fibroblastic proliferation and foreign body reactions. The pathogenesis of the xanthogranulomatous cholecystitis is uncertain, but opinion favours an inflammatory response to extravasated bile probably, from ruptured Rokitanky-Aschoff sinuses. Three cases of xanthogranulomatous cholecystitis with brief review of literature are presented.
- Sex Cord Tumor with Annular Tubules Metastasized to Mesentery.
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Yong Koo Park, Jae Hoon Park, Ju Hie Lee, Moon Ho Yang
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Korean J Pathol. 1990;24(1):65-69.
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- The sex cord tumor with annular tubules (SCTAT) is a distinctive ovarian neoplasm of which predominant component has intermediate morphologic features between the granulosa cell tumor and the Sertoli cell tumor; focal differentiation into either granulosa cell or Sertoli cell tumor may occur.
We presented a 24-year-old woman with SCTAT metastatic to the mesentery root. The origin of the primary was the left ovary, and the tumor was diagnosed nine years ago. This report dealt with clinical presentation and prognosis.
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