Two cases of pseudodiverticulum of the vermiform appendix.

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Pseudodiverticulum of the appendix is relatively rare in Japan, but a high incidence of associated complications, including perforation and abscess formation, has been reported. Two cases of appendiceal diverticulum are described here with a brief review of the Japanese literature. <BR>Case 1 : A 42-year-old male, who had been admitted to the Department of Urology with urinary bladder cancer, complained of right lower quadrant pain with marked muscle guarding and showed leukocytosis. A preoperative diagnosis of acute appendicitis was made and energercy appendectomy was undertaken. On gross appearance, there was a small diverticulum at the antimesenteric side near the base of the appendix. Microscopic examination revealed phlegmonous change of the appendix with pseudodiverticulitis. <BR>Case 2 : A 69-year-old male was admitted to our Department with rectal cancer and a small diverticulum of the ascending colon. During laparotomy for abdomino-perineal resection of the rectum, a small cystic mass was found at the apex of the mesoappendix. Additional appendiectomy was therefore undertaken to avoid postoperative complications. <BR>Bearing in mind, high incidence of associated complications of appendiceal diverticulum, prophylactic or incidental appendectomy should be undertaken when this condition is revealed by preoperative barium enema or during laparotomy.
日本大腸肛門病学会の論文