Tamai Ken, Koyama Takashi, Saga Tsuneo, Mikami Yoshiki, Fujii Shingo, Togashi Kaori
Department of Diagnostic Imaging and Nuclear, Graduate School of Medicine, Kyoto University, Japan.
J Comput Assist Tomogr. 2007 May-Jun;31(3):485-9. doi: 10.1097/01.rct.0000243452.33610.d4.
Small cell carcinoma of the uterine corpus is a rare but aggressive neoplasm showing neuroendocrine differentiation; its radiological findings are not well described. We report the magnetic resonance features of 3 cases with pathological correlation. Small cell carcinoma is shown as a bulky endometrial tumor of heterogeneous appearance on T2-weighted images, frequently associated with diffuse myometrium invasion and early extrauterine spread. Irregular enhancement with multifocal unenhanced areas of the thickened myometrium on contrast-enhanced T1-weighted images may represent the infiltrative nature of the tumor with extensive necrosis.
