CASE REPORT: Inflammatory Fibroid Polyp of the Small Intestine Causing Intussusception: A Report of Two Cases

Abstract

Inflammatory fibroid polyp (IFP) is a rare, localized, nonneoplastic lesion originating in the submucosa of the gastrointestinal tract. When localized in the small bowel, the presenting symptoms are colicky abdominal pain and obstruction (1). Intussusception due to IFPs is uncommon; moreover, jejunojejunal intussusception has only rarely been reported (2‐9). We describe two cases of IFPs of the small intestine causing jejunojejunal and ileoileal intussusception, respectively. The literature and radiologic findings are briefly reviewed. CASE 1 A 54-year-old woman presented to our hospital with an 8-month historyof intermittent episodes of abdominal pain, vomiting, and diarrhea. The patient denied any previous surgical operation or systemic disease. Physical examination was normal. Laboratory tests showed only mild hypochromic anemia. Upper and lower gastrointestinal endoscopies were performed and showed no abnormalities. An enteroclysis study revealed a quite typical configuration of ileo-ileal intussusception, causing small bowel obstruction, with pronounced proximal dilatation. The presence of a well-rounded, intraluminal filling defect was suspected at the distal part of the formation (Figure 1). An ultrasound scan that followed showed a hypoechoic, round, 35-mmdiameter soft tissue mass at the end of a dilated, thick-walled ileal loop at the right flank. Abdominal CT scan demonstrated an intussusception formation in the midabdomen, due to a smooth soft tissue mass, with concomitant high-degree dilatation of the proximal small bowel loops. A diagnosis of intraluminal ileal stromaltumor was suggested. Partial enterectomy was performed. The