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WHO Classification of Tumours
Gastrointestinal stromal tumor, malignant
Stomach


Definition

A malignant subtype of gastrointestinal stromal tumor (GIST) characterized by large size (diameter more than 2 cm and often greater than 10cm) and more than 5 mitotic figures per 50 high power fields.

For general comments on gastric GISTs, please see GIST, NOS .