Kim Hyun, Jung Seung Eun, Lee Eun Hee, Kang Si Won
Department of Radiology, Daejeon St. Mary's Hospital, The Catholic University of Korea, Daejeon, Korea.
J Comput Assist Tomogr. 2003 May-Jun;27(3):357-60. doi: 10.1097/00004728-200305000-00010.
We report two cases of vaginal melanoma with magnetic resonance imaging findings. The first melanoma was a bilobular polypoid mass with melanotic and amelanotic components, which arose from the lateral wall of the vaginal canal. The melanotic melanoma showed high signal intensity (SI) on T1-weighted images and low SI on T2-weighted images, which was not suppressed by a fat-saturated sequence. Another melanoma showed a pale brown polypoid mass in the vagina, which revealed intermediate SI on T1-weighted images and high SI on T2-weighted images. On fat-suppressed images, both tumors were more clearly demonstrated with high SI.
我们报告两例阴道黑色素瘤的磁共振成像表现。第一例黑色素瘤是一个具有黑色素和无黑色素成分的双叶息肉样肿物，起源于阴道管侧壁。黑色素性黑色素瘤在T1加权图像上呈高信号强度（SI），在T2加权图像上呈低SI，脂肪饱和序列不能抑制该信号。另一例黑色素瘤表现为阴道内淡褐色息肉样肿物，在T1加权图像上呈中等SI，在T2加权图像上呈高SI。在脂肪抑制图像上，两个肿瘤均表现为高SI，显示得更清晰。
