EN
This report describes two cases of GIST with bleeding as the predominant symptom. The first case comprised a patient with a gastric carcinoma and bleeding of the digestive tract. The second patient was diagnosed with mesenteric carcinoma and peritoneal cavity bleeding. Both patients underwent emergent surgical intervention. The first patient was subjected to gastric resection, while the latter to mesentery resection. The postoperative period proved uneventful. The excised specimens were evaluated at the Department of Pathomorphology, Institute of Oncology in Warsaw. The patients were directed to the Department of Soft Tissue Neoplasms, Institute of Oncology for registration and further treatment.