Repeated "occult" spinal subarachnoid hemorrhage and spinal cord ependymoma.
D002648:Child; D004806:Ependymoma / Q000150:complications* / Q000175:diagnosis; D006801:Humans; D008297:Male; D013118:Spinal Cord Diseases / Q000209:etiology*; D013120:Spinal Cord Neoplasms / Q000150:complications* / Q000175:diagnosis; D013345:Subarachnoid Hemorrhage / Q000175:diagnosis / Q000209:etiology*