Dermoid tumours of the spinal cord.
D003884:Dermoid Cyst / Q000175:diagnosis* / Q000601:surgery; D006801:Humans; D012871:Skin Diseases / Q000175:diagnosis; D013120:Spinal Cord Neoplasms / Q000175:diagnosis* / Q000601:surgery; D013724:Teratoma / Q000175:diagnosis