Abstract
The present paper describes 2 cases of mucocele of the appendix. Case 1: A 72-year-old female was admitted to the hospital because of right lower abdominal pain. Case 2: A 45-year-old male was admitted to the hospital because of lower abdominal pain. In both cases, Ba-enema examination revealed a filling defect with smooth surface in the cecum. CT and ultrasonography revealed a unilocular and internally homogenous cystic tumor with smooth surface which positioned the same area as the cecum exists. Both patients were diagnosed as having mucocele adenoma of the appendix and partial excision of the cecum was performed. Pathologically those were mucin-producing adenoma of the appendix. Mucocele of the appendix is a relatively rare disease and presents difficulties in the preoperative diagnosis. More than 420 cases have been reported in the Japanese literature so far, and only 53 cases could be diagnosed preoperatively. This time we experienced 2 cases of mucocele of the appendix, diagnosed correctly before operation by CT and ultrasonography. The importance of CT and ultrasonography should be emphasized if the disease is suspected preoperatively.
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