Back pain and weakness in the lower limbs.
D000293:Adolescent; D001415:Back / Q000503:physiopathology; D002420:Cauda Equina; D004806:Ependymoma / Q000150:complications / Q000175:diagnosis*; D006801:Humans; D007866:Leg / Q000503:physiopathology; D008161:Lumbosacral Region; D008297:Male; D010146:Pain / Q000209:etiology; D013120:Spinal Cord Neoplasms / Q000150:complications / Q000175:diagnosis*