title: Low back pain in a 23-year-old man.
mesh_terms: D000328:Adult; D017824:Bone Cysts, Aneurysmal / Q000150:complications* / Q000175:diagnosis / Q000473:pathology; D003937:Diagnosis, Differential; D003952:Diagnostic Imaging; D006801:Humans; D017116:Low Back Pain / Q000209:etiology*; D008159:Lumbar Vertebrae; D008297:Male; D018215:Osteoblastoma / Q000150:complications* / Q000175:diagnosis / Q000473:pathology; D012516:Osteosarcoma / Q000175:diagnosis; D013125:Spinal Neoplasms / Q000150:complications* / Q000175:diagnosis / Q000473:pathology