Synonyms/Description

A mucocele is an appendiceal mass characterized by hypersecretion of mucus contained within the appendix causing dilatation of the lumen.

Etiology

Mucoceles of the appendix are caused by excessive mucous production secondary to retention cyst (simple) (18%), mucosal hyperplasia (20%), mucinous cystadenoma (52% to 84%), or mucinous cystadenocarcinoma (10% to 20%). They occur in males twice as frequently as females and most often in the fifth or sixth decade. The incidence of mucocele of the appendix is 0.2% and 0.3% of all appendectomies.

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