CASE REPORTS PRIKAZI SLUČAJEVA

Summary Introduction. Gastrointestinal stromal tumors are the most common mesenchymal neoplasms of the gastrointestinal tract. These tumors represent more than 80% of all mesenchymal tu- mors found in the gastrointestinal tract, though they account for only approximately 3% of all gastrointestinal malignancies. Lit- erature offers case reports, which describe symptomatic gas- trointestinal stromal tumors and they generally represent patients with larger tumors. Case report. We present the case of a small gastrointestinal stromal tumor in a 40-year-old man, with associ- ated giant liver hemangioma and fever, and with history of ab- dominal discomfort and fever. Clinical examination revealed hepatosplenomegaly, palpable mass in the right lower abdomen, and signs of neurofibromatosis type 1 (Morbus von Reckling- hausen). Computed tomography revealed a giant tumor in the right lobe of the liver. Magnetic resonance showed abscess in the hemangioma of the liver. An intestinal tumor was incidentally found and excised during surgical laparotomy. An intestinal gas- trointestinal stromal tumor was revealed by histopathology and confirmed by immunohistochemistry. Although a multidiscipli- nary team proposed surgical removal of the liver tumor mass, the surgeons decided to follow up the patient because of a high risk of new intervention. Conclusion. According to the available data, this is a very rare case of small intestinal gastrointestinal stromal tumor, with symptoms of fever and giant abscess in the