colorectal neoplasm colorectal gastrointestinal stromal tumor colorectal (colon or rectal) gastrointestinal stromal tumor (gist) EFO:1000192 colorectal gastrointestinal stromal tumor (gist) colorectal (colon or rectal) gastrointestinal stromal tumour (gist) MONDO:0006159 NCIT:C27735 MEDGEN:272496 A gastrointestinal stromal tumor that arises from the colon or rectum. The majority of cases have spindle cell morphology. Gastrointestinal stromal tumors of the colon are usually advanced upon detection and tend to have a poor prognosis; gastrointestinal stromal tumors of the rectum usually have an aggressive clinical course. colorectal gastrointestinal stromal tumor colorectal gist colorectal gastrointestinal stromal tumour (gist) UMLS:C1333109