title: [US and CT findings of mucinous carcinomas of the gallbladder].
abstract: Mucinous carcinomas of the gallbladder are relatively uncommon. Their radiological findings have not been described previously. We describe the CT and US findings of mucinous carcinoma of the gallbladder in 3 cases. Tumors (thickened wall and/or intraluminal polypoid mass) showed hyperechogeneity or isoechogeneity on US and water density on CT. US clearly detected large polypoid lesions, but CT was unable to detect these lesions in 2 cases. Therefore, we stressed the discrepancy between the findings of US and CT. These features can be explained by the fact that a tumor containing a large amount of mucin produces a mass of near-water density in the gallbladder on CT. It is of value to know the radiological findings of these tumors because the diagnosis is easily missed by CT study alone.
authors.affiliation: Department of Radiology and First Pathology, Showa University School of Medicine.
authors.forename: H
authors.initials: H
authors.lastname: Nobusawa
authors.forename: T
authors.initials: T
authors.lastname: Hashimoto
authors.forename: H
authors.initials: H
authors.lastname: Munechika
authors.forename: K
authors.initials: K
authors.lastname: Soejima
authors.forename: N
authors.initials: N
authors.lastname: Seino
authors.forename: Y
authors.initials: Y
authors.lastname: Kurashita
authors.forename: T
authors.initials: T
authors.lastname: Gokan
authors.forename: T
authors.initials: T
authors.lastname: Kushihashi
authors.forename: T
authors.initials: T
authors.lastname: Hishida
mesh_terms: D002288:Adenocarcinoma, Mucinous / Q000000981:diagnostic imaging* / Q000473:pathology / Q000648:ultrastructure*; D000368:Aged; D005706:Gallbladder Neoplasms / Q000000981:diagnostic imaging* / Q000473:pathology / Q000648:ultrastructure*; D006801:Humans; D008297:Male; D008875:Middle Aged; D014057:Tomography, X-Ray Computed