title: [Giant mucocele of appendix. Case report].
abstract: Appendiceal mucocele is an uncommon disorder caused by accumulation of mucus within the appendiceal lumen. Mucoceles represent a heterogeneous group comprising various histopathologic lesions including mucosal hyperplasia, cystoadenomas, and cystoadenocarcinomas and prognosis is related to these subtypes. The most common symptom is pain or a palpable mass in the right lower quadrant on physical examination. The preoperative diagnosis is performed with abdominal U.S. and confirmed with CT scan; typical CT scan image is a capsulated cystic mass with calcification of the wall while U.S. pattern shows cystic lesion with the onion skin sign considered a specific sonographic marker for appendiceal mucocele. In conclusion a cystic mass sonographically detected with onion skin sign, in the presence of normal female reproductive organs, suggest the diagnosis of appendiceal mucocele.
authors.affiliation: Ospedale Santo Spirito-Bra (Cn), Divisione Chirurgia Generale.
authors.forename: M
authors.initials: M
authors.lastname: Pittaluga
authors.forename: R
authors.initials: R
authors.lastname: Lombezzi
authors.forename: G
authors.initials: G
authors.lastname: Fantino
authors.forename: P
authors.initials: P
authors.lastname: Giamundo
authors.forename: M
authors.initials: M
authors.lastname: Geraci
authors.forename: L
authors.initials: L
authors.lastname: Tibaldi
authors.forename: L
authors.initials: L
authors.lastname: Esercizio
authors.forename: G
authors.initials: G
authors.lastname: Torre
authors.forename: F
authors.initials: F
authors.lastname: Perotto
authors.forename: A
authors.initials: A
authors.lastname: Musso
authors.forename: M
authors.initials: M
authors.lastname: Valente
mesh_terms: D000328:Adult; D001065:Appendix; D002429:Cecal Diseases / Q000175:diagnosis / Q000601:surgery; D006801:Humans; D008297:Male; D009078:Mucocele / Q000175:diagnosis / Q000601:surgery