Figure 2.

Panel (A) (Case 2)—Florid clinical arthritis of the proximal interphalangeal joints (dotted red circles). Concomitant, painless rash on two toe tips (orange circles). Panel (B) (Case 23)—Severe articular swelling of the right ankle, left wrist, and the small joints of the fingers (dotted red circles). Panel (C) (Case 9)—dactylitis of the third finger (black arrowheads) associated with chilblain lesion of the second finger (red arrow). Panel (D) (Case 10)—chilblain-like lesions of the fingers and palms, associated with urticarial lesions of the wrists (blue dotted square), thighs and elbows (blue dotted arrows).