title: Answer to Photo Quiz: A 34-year-old man with back pain.
mesh_terms: D000005:Abdomen / Q000000981:diagnostic imaging; D000328:Adult; D003287:Contrast Media; D003937:Diagnosis, Differential; D006801:Humans; D007238:Infarction / Q000150:complications / Q000000981:diagnostic imaging*; D007668:Kidney / Q000098:blood supply* / Q000000981:diagnostic imaging; D017116:Low Back Pain / Q000000981:diagnostic imaging* / Q000209:etiology; D008297:Male; D008488:Medical Illustration; D014057:Tomography, X-Ray Computed / Q000379:methods*
chemical_list: D003287:Contrast Media