Fine‐needle aspiration of metastatic sacrococcygeal myxopapillary ependymoma

A 45‐yr‐old white woman with a 24‐yr history of sacrococcygeal myxopapillary ependymoma developed a large metastasis of scalp and skull diagnosed as metastatic ependymoma on fine‐needle aspiration, based on cytologic features, histotogic pattern in cell block fragments, and a positive reaction with the glial fibrillary acidic protein immunoperoxidase study. The fine‐needle study obviated the need for biopsy in this case, for which a surgical approach was considered to be inappropriate due to the extent of the process demonstrated by various imaging techniques. Diagn Cytopathol 1986;2:261–263.