Leiomyosarcoma is an uncommon, aggressive malignant smooth muscle neoplasm, histologically characterized by a proliferation of neoplastic spindle cells. Morphologic variants include epithelioid leiomyosarcoma
, myxoid leiomyosarcoma
, granular cell and inflammatory leiomyosarcoma
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They are rare as leiomyomas. Prognosis is better when grade and mitotic rate are low
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True smooth muscle tumors of the small intestine: a clinicopathologic, immunhistochemical, and molecular genetic study of 25 cases.
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