Villous Adenoma with High-Grade Dysplasia of the Appendix: A Case Report

Abstract

Villous adenomas of the appendix are rare and usually diagnosed incidentally after appendectomy due to acute appendicitis. Appendicular villous adenomas have potential risk for progression to invasive carcinoma, just as other adenomas located in colon and rectum. Appendectomy can be considered sufficient treatment if the tumor measures less than 2 cm, there is no mesoappendicular or nodal spread, and the resection margins are healthy. We present a patient diagnosed with villous adenoma with high-grade dysplasia detected in histopathological examination of appendectomy specimen.

Keywords

• Appendix
• villous adenoma
• dysplasia