A CASE OF INFLAMMATORY FIBROID POLYP OF THE VERMIFORM APPENDIX

Abstract

A 41-year-old male was admitted to our hospital for further examination of submucosal tumor at the orifice of the appendix. Although barium enema study and colonoscopy revealed mucocele, abdominal CT and endoscopic ultrasonography showed solid tumor suspected of leiomyoma. Laparoscopic ileocecal resection was performed. A 20mm elevated lesion was found at the orifice of the appendix. Histological finding showed the tumor consisted chiefly of f ibroblasts and collagen fiber accompanying eosinophillic infiltration. Thus, it is diagnosed as inflammatory fibroid polyp (IFP). IFP of the appendix is rare and this is the third case in Japan.