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Epithelioid Cell Type Gastrointestinal Stromal Tumor
Definition 1
A rare tumor arising from smooth muscle. The majority arise in the stomach, however the colon, bladder, vulva, and other sites may give rise to this neoplasm. Benign and malignant variants occur. (NCI Thesaurus)
Definition 2
A neoplasm of the gastro-intestinal tract, originating from smooth muscle cells, for which the malignancy status has not been established. (NCI Thesaurus/CDISC)
Definition 3
A relatively rare smooth muscle tumor found most frequently in the wall of the gastrointestinal tract, especially in the stomach. It is similar to other smooth muscle tumors but may become very large and hemorrhage and exhibit small cystic areas. Simple excision is almost always curative. (From Dorland, 27th ed; DeVita Jr et al., Cancer: Principles & Practice of Oncology, 3d ed, p1354) (NLM, Medical Subject Headings)
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