Abstract
This paper describes a rare case of primary carcinoma of the appendix with pseudomyxoma peritonei.
A 65-year-old female complained of right lower abdominal pain. Physical examination showed a marked tenderness and peritoneal sign in the right lower abdomen. Iliopsoas sign showed strong positive. Abdominal ultrasonography revealed a hypoechoic lesion with partially hyperechoic lesion, but vermiform appendix was not visualized. A possible diagnosis of retroperitoneal abscess formation due to perforation of acute appendicitis was made. Emergency operation was carried out. Intraoperative findings showed pseudomyxoma peritonei infiltrating into the right retroperitoneal cavity. Right hemicolectomy was done. Resected specimen revealed a tumor of the appendix, measuring 6.5×4.0 cm. Histopathological examination showed mucinous cystoadenocarcinoma of the appendix. Postoperative course was uneventful and the patient was discharged on the 19st hospital day.
