title: MRI of malignant melanoma of liver.
abstract: We report MR images of primary malignant melanoma of the liver. The tumor showed heterogeneously increased signal intensity on both T1- and T2-weighted images. After the administration of gadolinium-DTPA, the lesion presented irregular enhancement. Autopsy revealed a large black mass surrounded by fibrous tissue. The tumor consisted of atypical cells with melanin pigment, and had intratumoral degeneration, necrosis, and hemorrhage.
authors.affiliation: Department of Radiology, Matsudo City Hospital, Chiba, Japan.
authors.forename: M
authors.initials: M
authors.lastname: Furuta
authors.forename: H
authors.initials: H
authors.lastname: Suto
authors.forename: S
authors.initials: S
authors.lastname: Nakamoto
authors.forename: R
authors.initials: R
authors.lastname: Suzuki
authors.forename: Y
authors.initials: Y
authors.lastname: Hirai
authors.forename: K
authors.initials: K
authors.lastname: Asanuma
mesh_terms: D000368:Aged; D005260:Female; D006801:Humans; D008099:Liver / Q000000981:diagnostic imaging / Q000473:pathology; D008113:Liver Neoplasms / Q000175:diagnosis* / Q000000981:diagnostic imaging / Q000473:pathology; D008279:Magnetic Resonance Imaging; D008545:Melanoma / Q000175:diagnosis* / Q000000981:diagnostic imaging / Q000473:pathology; D014057:Tomography, X-Ray Computed