title: X-ray case of the month.
mesh_terms: D000328:Adult; D001168:Arthritis / Q000000981:diagnostic imaging* / Q000209:etiology; D005384:Finger Joint / Q000000981:diagnostic imaging; D006801:Humans; D008297:Male; D008875:Middle Aged; D011565:Psoriasis / Q000150:complications; D011859:Radiography