MRI of malignant melanoma of liver.
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.
Furuta
M
M
Department of Radiology, Matsudo City Hospital, Chiba, Japan.
Suto
H
H
Nakamoto
S
S
Suzuki
R
R
Hirai
Y
Y
Asanuma
K
K
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