Elastofibroma of the sigmoid colon

A case of elastofibroma occurring in the sigmoid colon of a 69 year-old wom an is reported. The woman presented for survey of her gastrointestinal trac t. Colonoscopy disclosed two polyps in the sigmoid colon, one of which was clinically considered to be recurrent adenoma. Histologically, the lesion h ad characteristic eosinophilic fibers and globules, termed elastofibroma fi bers with hematoxylin and eosin stain. In addition, these elastinophilic ma terials were digested by elastase. Histological evaluation confirmed the di agnosis of elastofibroma. Our case might suggest that it is the result of l ong-term fibrosis after previous endoscopic resection of a sigmoid colonic adenoma.