A Case of Villous Adenoma of the Vermiform Appendix

Hiromasa Taniguchi, Masato Kono, Mayuko Yoshida, Hiroaki Mizokami, Kazunori Yoshida, Shigeyuki Tsuchimochi, Mitsunori Kiso, Sukenori Kawasaki and Kaizo Sano

Department of surgery, Kawasaki Hospital, Kawasaki Medical school

We report a rare of villous adenoma of the vermiform appendix. A 78-year-old man was addmitted to our hospital because of rightlower quadrant abdominal pain and a palpable tumor. A preoperative diagnosis of inflammatory tumor as acute appendicitis was made by abdominal echography, abdominal CT scan and colonic endoscopy.
Appendectomy was performed. Histological findings disclosed a villousadenoma associated with appendicitis. In Japan, there have been only 11 reported cases of adenoma of the vermiform appendix, including 5 cases (45.5%) of villous adenoma. It should be considered that adenoma of the vermiform appendix tends to be malignant change with highincidence as compared with that of colon.

Key words
vermiform appendix, appendiceal tumor, villous adenoma

Reprint requests
Hiromasa Taniguchi Department of Surgery, Kawasaki Hospital, Kawasaki Medical School 2-1-80 Nakasange, Okayama, 700-8505 JAPAN

Accepted
February 23, 2000

To read the PDF file you will need Abobe Reader installed on your computer.