Furuta M, Suto H, Nakamoto S, Suzuki R, Hirai Y, Asanuma K
Department of Radiology, Matsudo City Hospital, Chiba, Japan.
Radiat Med. 1995 May-Jun;13(3):143-5.
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.
我们报告了肝脏原发性恶性黑色素瘤的磁共振成像（MR）图像。该肿瘤在T1加权和T2加权图像上均显示信号强度不均匀增加。静脉注射钆喷酸葡胺（gadolinium-DTPA）后，病变呈现不规则强化。尸检发现一个被纤维组织包绕的巨大黑色肿块。肿瘤由含有黑色素的非典型细胞组成，伴有瘤内变性、坏死和出血。
