Voluminous mesenteric desmoid tumor with superior mesenteric vein reconstruction: A case report

Mesenteric tumor or mesenteric fibromatosis is a pathological entity of the mesentery of the small intestine produced by the proliferation of fibroblasts. It has a frequency of 8% of all desmoid tumors and 0.03% of all neoplasms. It has a benign character, but locally it sometimes invades neighboring structures and can recur after ablation. Clinically, this type of tumor presents as asymptomatic abdominal masses, abdominal discomfort or pain, intestinal obstruction, intestinal perforation. A 49-year-old patient presented to the surgical service for palpable abdominal tumor formation and abdominal pain. Following the exploratory laparotomy, an 18 × 12 cm tumor mass in the ileal mesentery was identified and removed. The histopathological examination confirmed the diagnosis. Emphasizing the rarity of these tumors, the diagnostic and therapeutic difficulties, it is justified to report this case.