title: Monarticular involvement of the manubriosternal joint.
abstract: Four females and two males with seronegative monoarthritis of the manubriosternal joint are reported. Two patients had pustulosis palmoplantaris, one psoriasis vulgaris, and one HLA-B27. The arthritis is considered to be a monoarticular manifestation of seronegative spondylarthritis. Two patients had no other diseases or signs. Four patients were followed for a mean of 8.5 years (range 2-16 years) during which time affection of other joints or the spine was not seen.
mesh_terms: D000328:Adult; D001168:Arthritis / Q000000981:diagnostic imaging* / Q000209:etiology / Q000473:pathology; D003937:Diagnosis, Differential; D005260:Female; D005500:Follow-Up Studies; D005533:Foot Dermatoses / Q000150:complications; D006229:Hand Dermatoses / Q000150:complications; D006801:Humans; D008297:Male; D008371:Manubrium / Q000000981:diagnostic imaging*; D008875:Middle Aged; D011859:Radiography; D013166:Spondylitis / Q000150:complications; D013249:Sternum / Q000000981:diagnostic imaging*