- Malignant Gastrointestinal Stromal Tumor of the Esophagus: A Case Report.
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Hae Joung Sul, Kyeong Hee Kim, Dae Young Kang
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Korean J Pathol. 2001;35(3):252-255.
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- Gastrointestinal stromal tumors (GISTs) predominate in the stomach and small intestine but have rarely been documented in the esophagus. We report a rare case of GIST of the esophagus in a 47-year-old woman. Histologically, the tumors showed a combination of solid, myxoid, and perivascular collar-like patterns, with spindle and epithelioid cells.
The tumor cells were positive for CD117, CD34, and S-100 protein and negative for desmin and -smooth muscle actin.
- Chronic Hepatitis in the Idiopathic Hypereosinophilic Syndrome: A case report .
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Kyeong Hee Kim, Hae Joung Sul, Sung Chul Jun, Dae Young Kang
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Korean J Pathol. 1999;33(8):624-626.
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- Chronic hepatitis associated with the idiopathic hypereosinophilic syndrome has been very rarely reported worldwide. Recently, we experienced a case of chronic hepatitis with piecemeal necrosis as the clinical feature of the idiopathic hypereosinophilic syndrome. The patient was a 49-year-old woman who complained of a mild fever, nausea, vomiting, and pain in the right upper quadrant. The eosinophil count of peripheral blood increased up to 14,020/microliter (64% of WBC). Liver biopsy specimen showed severe porto-periportal inflammation with marked eosinophilic infiltration and ballooning degeneration of hepatocytes. Corticosteroid therapy significantly normalized the eosinophil count of peripheral blood.
- Solitary Fibrous Tumor A clinicopathologic review of five cases.
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Bum Kyung Kim, Dong Wook Kang, Kyeong Hee Kim, Seong Ki Min, Jin Man Kim, Kyu Sang Song, Dae Yung Kang, Si Whan Choi
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Korean J Pathol. 1999;33(2):115-120.
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- We experienced five cases of solitary fibrous tumor; two in the pleura, two in the orbital soft tissue, and one in the lung parenchyma. Three patients were male, and the age of the patients ranged from 38 to 71 years (mean age: 53.6).
Grossly, the masses were well circumscribed and had varying sizes from 2.5 to 30.0 cm. The cut surfaces were grayish-yellow firm with focal variegated hemorrhage, necrosis, cystic change, and myxoid area. Microscopically, these were characterized by a haphazard proliferation of spindle cells or polygonal cells separated by variable amounts of hyalinized collagen and showed a prominent vascular channels reminiscent of hemangiopericytoma in foci.
Immunoperoxidase stains showed a strong reactivity for CD34, and were weakly positive for vimentin. Electron microscopical examination revealed features of fibroblast; spindle to round tumor cells were arranged in groups and surrounded by collagen. Nucleoli were seldom prominent. The cytoplasm contained many microfilaments and a moderate number of cisternae of rough endoplasmic reticulum.
- Primary Malignant Fibrous Histiocytoma of the Liver: A case report.
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Bum Kyeong Kim, Kyeong Hee Kim, Hye Jeong Sul, Dae Young Kang
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Korean J Pathol. 1999;33(1):48-51.
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- Malignant fibrous histiocytoma (MFH) of the liver is uncommon, representing less than 1% of the primary malignant lesions of the liver. We report primary MFH of the liver in a 59-year-old woman. The tumor, measuring 9.0 9.0 6.0 cm, was located in the left lobe of the liver. It showed multiple areas of hemorrhage and necrosis. Microscopically, the tumor consisted of plump spindle cells haphazardly arranged in short fascicle and focal storiform pattern.
Multiple bizarre giant cells were also noted.
Immunohistochemically, many of the tumor cells were positive for vimentin and alpha1-antitrypsin but negative for epithelial markers. Ultrastructurally, the tumor cells showed fibroblastic and histiocytic features.
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