A Case of Xanthoma Existed in the Part of the Hyperplastic Polyp of the Colon

Abstract

Xanthoma of the colon is comparatively rare. A patient was 67-year-old female, who complained of irregular bowel habit.
By colonscopy, two hemispherical polyps with 5 mm in diameter in the ascending colon and a hemispherical polyp with 4 mm in diameter in the sigmoid were found and hot-biopsied. They were adenomas. In addition to them, a hemispherical polyp with 7 mm in diameter was found in the middle of the rectum. Its surface was rather smooth with similar with the surrounding mucosa.
A small whitish patch was noted at the base of that polyp, so that endoscopic resection was carried out including a white patch. Histologically, the xanthoma existed in the part of the hyperplastic polyp.
The xanthoma of the digestive system, especially in the stomach were reported many but that in the colon were rarely reported. It is extremely rare that the xanthoma existed in the hyperplastic polyp as shown in this article.