Chung J Y, Lee S K, Yang K H, Song M K
Department of Radiology, Eulji Medical College, TaeJeon, Korea.
AJNR Am J Neuroradiol. 1999 Feb;20(2):344-6.
We report a case of myxopapillary ependymoma presenting as a primary tumor of the subcutaneous tissue in the sacrococcygeal region. The mass was large, well-encapsulated, lobulated, and multiseptated, with varying signal intensity on T1- and T2-weighted MR images caused by hemorrhagic necrosis, blood degradation products, and calcification. Only a small viable portion enhanced after administration of contrast material. Multiple lobules formed from fibrous septa and dystrophic calcification also characterize this tumor.
我们报告一例黏液乳头型室管膜瘤，表现为骶尾区域皮下组织的原发性肿瘤。肿块较大，包膜完整，呈分叶状且有多个分隔，在T1加权和T2加权磁共振图像上信号强度各异，这是由出血性坏死、血液降解产物和钙化所致。注射造影剂后仅有一小部分存活组织强化。由纤维间隔和营养不良性钙化形成的多个小叶也是该肿瘤的特征。
