title: Psoriatic spondylitis.
mesh_terms: D000328:Adult; D001168:Arthritis / Q000000981:diagnostic imaging*; D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D007403:Intervertebral Disc / Q000000981:diagnostic imaging; D008297:Male; D008875:Middle Aged; D011565:Psoriasis / Q000150:complications*; D011859:Radiography; D012189:Retrospective Studies; D012446:Sacroiliac Joint; D013128:Spinal Osteophytosis / Q000000981:diagnostic imaging; D013166:Spondylitis / Q000150:complications / Q000000981:diagnostic imaging*; D013167:Spondylitis, Ankylosing / Q000000981:diagnostic imaging