Korean J Pathol.
2001 Apr;35(2):180-183.
Metastatic Alveolar Soft Part Sarcoma Presented with a Dura Mass: A Case Report
- Affiliations
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- 1Departments of Pathology, Keimyung University School of Medicine, Taegu 700-712, Korea. pathol5@dsmc.or.kr
- 2Departments of Diagnostic Radiology, Keimyung University School of Medicine, Taegu 700-712, Korea.
- 3Departments of Neurosurgery, Keimyung University School of Medicine, Taegu 700-712, Korea.
Abstract
- Alveolar soft part sarcoma, accounting for less than 1% of all soft tissue sarcomas, is known for late metastases to the lung, bone and brain. We have examined a case of metastatic alveolar soft part sarcoma to the brain in a 34-year-old woman. Computed tomography of the brain revealed a well enhancing dura based mass of the left temporal area. The patient had a previous history of surgery for alveolar soft part sarcoma from the right thigh at the age of 24 years. She underwent total removal of the dural mass under the clinical impression of the meningioma. Grossly, a well-circumscribed, pale tan and solid mass was 3.4 x 3.2 x 2.4 cm and easily detached from the attached dura. Histologically, the tumor showed typical features of alveolar soft part sarcoma. Immunohistochemically, tumor cells were positive for muscle related antibodies. Ultrastructural examination showed rod-shaped membrane bound crystals and electron-dense granules in the cytoplasm of tumor cells.
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