gastrointestinal

In as many as 5% of patients with obscure GI bleeding, a source cannot be identified despite extensive examination. When a lesion cannot be identified after standard upper endoscopy and colonoscopy, further evaluation depends on...

Small bowel examination can be accomplished with standard small bowel follow-through, enteroclysis, push enteroscopy, Sonde enteroscopy, wireless capsule endoscopy, and intraoperative enteroscopy. In the case described here, small...

Microscopic view of the parietal tumor and the normal yeyunal mucosa.

Fusocelular pattern of tumor.

IHQ positive for cd117. Low power of cd117 or c-kit, positive at tumor cell and also at the Cajal cells of yeyuno.

A high power of cd117 by IHQ High power view of tumor cells positive for c- kit.

Immunohistochemistry was positive for and CD 117 (c-kit) in the GIST. A GIST can’t be Diagnosed by H&E Gastrointestinal stromal tumor (GIST) is a mesenchymal spindle cell (70-80%) or epithelioid (20-30%) neoplasm. The diagnosis...

GISTs occur most often in the stomach (60-70%), followed by the small bowel (20-30%; ileum > jejunum > duodenum), the colon/rectum (5%), and the esophagus (5%). The majority are benign; 10-30% are malignant. The differentiation...

Gastrointestinal stromal tumors (GIST) are rare tumors that may arise anywhere in the tubular gastrointestinal tract, but stomach is the most common site of localization. Surgery is the main stay of treatment and complete resection...

In light of the tendency of these tumors to pursue an indolent clinical course with a significant risk of late relapse, a brisk follow-up is advocated for all patients. Images from upper GI series may demonstrate the lesion in...