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The Korean Journal of Pathology 1988;22(4): 510-514.
Benign Fibrous Histiocytoma of Spinal Cord.
Hae Joo Nam, Won Hee Choi, Tae Sook Lee
Department of Pathology, Yeungnam University Medical School, Taegu, Korea.
Fibrous histiocytoma composed of fibroblasts and histiocytes is quite variable in histologic pattern. The biologic behavior is unpredictable by histologic ground. This tumor is well-known in subcutaneous tissue and deep soft tissue, but quite rare in central nervous system. We experienced a case of the fibrous histiocytoma involving the dura mater of spinal cord in a 26 year old female patient. In gross findings, the mass was a well demarcated, ovoid mass attached to the dura matter, and measured 2.5x1.5 cm in diameter. The cut surface was rubbery, solid, gray-white or yellow. Microscopically, the lesion consisted of polyhedral cells with round or oval nuclei and faintly eosinophilic or vaculoated cytoplasm, and multinucleated giant cells. Some giant cells were Touton-type. Composing cells were bland-looking. Mitotic figures were average 3 per 10 high power fields.
Key Words: Fibrous histiocytoma; benign; spinal cord; dura