The distal interphalangeal joints of the fingers—the joints closest to your fingertips—are commonly affected by PsA. PsA is also characterized by dactylitis in which your fingers or toes swell ...

often happens in joints at the ends (distal) of your fingers. People most often pop their middle finger joints — the second most common place for arthritis to occur. “Knuckle cracking is ...

which might have explained the color of the distal finger. However, Doppler studies done 1 day after the injection demonstrated adequate perfusion. Therefore, cyanosis also appeared less likely to ...