Unilateral sacroiliitis.
D000328:Adult; D001170:Arthritis, Infectious / Q000000981:diagnostic imaging* / Q000382:microbiology; D006801:Humans; D011859:Radiography; D012446:Sacroiliac Joint / Q000000981:diagnostic imaging*; D014394:Tuberculosis, Osteoarticular / Q000000981:diagnostic imaging*