title: A case of liver echinococcosis mimicing a solid liver tumor.
abstract: A case of hepatic echinococcosis mimicing a solid tumor was presented. The echinococcosis appeared as an echogenic mass in US, a low density area in CT, and an area of low (T1-weighted image) and high (T2-weighted image) intensity in MRI. Echo-guided biopsy showed PAS-positive cuticle layer of echinococcus in the necrotic tissue. Anular features around the lesion noted in MRI seemed to imply increased hepatic tissue water (congestion and/or edema). When a solid tumor is noted in the liver, proper history taking and awareness of this disease will decrease the chance of misdiagnosis.
authors.affiliation: Department of Radiological Sciences, Faculty of Medicine, Toyama Medical and Pharmaceutical University, Japan.
authors.forename: T
authors.initials: T
authors.lastname: Kamei
authors.forename: R
authors.initials: R
authors.lastname: Futatsuya
authors.forename: H
authors.initials: H
authors.lastname: Seto
authors.forename: T
authors.initials: T
authors.lastname: Soya
authors.forename: M
authors.initials: M
authors.lastname: Kakishita
authors.forename: T
authors.initials: T
authors.lastname: Tsukishiro
authors.forename: K
authors.initials: K
authors.lastname: Yamamoto
mesh_terms: D002759:Adenoma, Bile Duct / Q000473:pathology; D000368:Aged; D003937:Diagnosis, Differential; D004444:Echinococcosis, Hepatic / Q000000981:diagnostic imaging / Q000473:pathology; D006801:Humans; D008113:Liver Neoplasms / Q000000981:diagnostic imaging / Q000473:pathology; D008279:Magnetic Resonance Imaging; D008297:Male; D014057:Tomography, X-Ray Computed; D014463:Ultrasonography