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Definition of Leiomyosarcoma
1. Noun. Sarcoma of smooth muscle; occurs most often digestive tract or uterus or bladder or prostate.
Generic synonyms: Sarcoma
Medical Definition of Leiomyosarcoma
1. A malignant tumour of smooth muscle origin. Smooth muscle is the major structural component of most hollow internal organs and the walls of blood vessels. Can occur almost anywhere in the body but is most frequent in the uterus and gastrointestinal tract. Complete surgical excision, if possible, is the treatment of choice. (12 Dec 1998)