title: Blue coloured skin in psoriatic arthritis.
authors.forename: I
authors.initials: I
authors.lastname: Jajic
mesh_terms: D015535:Arthritis, Psoriatic / Q000150:complications* / Q000473:pathology; D001172:Arthritis, Rheumatoid / Q000150:complications / Q000473:pathology; D006801:Humans; D007596:Joints / Q000098:blood supply / Q000473:pathology; D010808:Physical Examination; D010859:Pigmentation Disorders / Q000150:complications* / Q000473:pathology; D012880:Skin Pigmentation