Asymptomatic spinal cord neoplasm detected during induction of spinal anesthesia

We report a case of an asymptomatic spinal cord neoplasm detected during the placement of a 25-gauge Whitacre spinal needle for spinal anesthesia before elective cesarean delivery. Subarachnoid blood was repeatedly aspirated during otherwise uncomplicated induction of spinal anesthesia. Magnetic resonance imaging revealed a spinal cord ependymoma in the lumbar spine. Asymptomatic spinal cord neoplasms and ependymomas are reviewed. Central nervous system pathology should be considered in the presence of persistent subarachnoid blood.