گزارش یک مورد تومور میوفیبروبلاستیک التهابی داخل شکم

Inflammatory myofibroblastic tumor (IMT) is a rare tumor with unknown etiology which usually occurs in children and adolescents. It is composed of myofibroblastic spindle cells intermixed with inflammatory cells. Our case was a 15-year-old boy presented with fever, weight loss, anemia and epigastric mass. Radiographic studies showed periduodenal mass with duodenal compression and mild mucosal thickening. Sonography and duodenal biopsy were not contributory. In laparatomy, a peri-duodenal mass with duodenal adhesion was seen during the resection, perforation of duodenum and extrahepatic bile duct occurred. Consequently, duodenostomy and anastomosis of bile ducts were performed. On histological examination, IMT was diagnosed. Manifestation resolved after the removal of the mass and he remained free of recurrence within three years after discharge. Based on the fact that IMT is now generally considered to be a potential neoplasm, clinicians must consider it and it should be added to the list of differential diagnoses of anemia and abdominal mass. In addition, despite benign histological features, a risk of aggressive behaviors of the tumor,a long term clinical and radiological follow up of the patients is necessary.