TWO CASES OF INFLAMMATORY FIBROID POLYP (IFP) ARISING IN THE LOWER INTESTINE

Abstract

Inflammatory fibroid polyp (IFP), which is defined as an inflammatory tumor of unknown etiology arising in the gastrointestinal organs, uncommonly occurs in the small and large intestine. Only 50 cases in the small and 10 in the large intestine can be seen in the Japanese literature as much as we can review. Case 1 was a 40-year-old woman. She was admitted to the hospital because of lower abdominal pain and constipation. A tumor of the ovary was suspected and the patient was operated on. An intussusception provoked by a tumor was found in the ileum. Partial excision of the ileum was performed. A 4×4×5cm pedunculated polyp was found. Case 2 was a 43-year-lold man. He was pointed out having a polyp of the large intestine on medical checkup. A 3×2cm sausage-like tumor was found in the sigmoid colon. Partial excision of the sigmoid colon was carried out. In both tumors hyperplasia of sparse chollagen fibers and fibroblasts, and infiltration of lymphocytes, plasmocytes, and mainly eosinophils were observed.