Subcutaneous sacrococcygeal myxopapillary ependymoma

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 inte nsity on T1- and T2-weighted MR images caused by hemorrhagic necrosis, bloo d degradation products, and calcification. Only a small viable portion enha nced after administration of contrast material. Multiple lobules formed fro m fibrous septa and dystrophic calcification also characterize this tumor.