Digital subcutaneous abscess

A subcutaneous abscess of the finger presents with localized swelling, erythema, and restricted motion at the adjacent joints. The digit is usually in a flexed posture, and there may be evidence of an inflamed puncture wound from a penetrating injury. In late presentations, the abscess may be pointing or discharging through a sinus.
(A) Palmar digital subcutaneous abscess.
(B) Dorsal digital subcutaneous abscess.
(C) Lateral digital subcutaneous abscess.