GISTs are typically submucosal tumors, and the overlying mucosa often remains intact on pathological and imaging assessment. They are believed to arise from the interstitial cells of …

Exophytic gastric mass with CT and MR features highly suggestive of a GIST. Histopathology: spindle cell tumor, formed of interdigitating bundles of atypical spindle cells, having irregular …

Gastrointestinal stromal tumor (GIST) is a rare tumor originating in the digestive tract, often in the stomach or small intestine. It can vary in aggressiveness and requires specialized treatment, …

Interpretation: Based on the imaging features, a large gastrointestinal stromal tumor is high on the differential list. Gastric lymphoma thought less likely given the lack of associated lymph node …

A rare mitotic figure is identified. Lesional cells immunoreactive with antibodies against CD117 (c-kit) and SMA and are negative with antibodies against desmin. Ki67 proliferative index is < …

CT and surgical resection were later performed. Pathology Macroscopic: tumor with superficial ulcerations; microscopic morphologic type- epithelioid cells, low mitotic count- >5/50 HPF …

Typical imaging features of a gastric GIST, which, on CT was not entirely convincing to not have pancreatic involvement. Further workup with MRI showed the lesion to be confined to the …

Rectal GIST is rare involving about 5% of cases. Radiological features of GIST are: a well demarcated margins, prominent extraluminal location, no surrounding lymphadenopathy and …

MRI features of a submucosal tumor of the stomach suggestive of a gastrointestinal stromal tumor (GIST). The main differential diagnosis includes the other gastrointestinal tumors:

What are some typical gastrointestinal stromal tumor (GIST) characteristics? Gastrointestinal stromal tumours (GISTs) are a biologically distinctive tumour type of the gastrointestinal tract …