Felon - Nail and Distal Digit
Synopsis

Patients typically present with acute onset of pain, erythema, and edema at the distal fingertip pulp or pad. The distal interphalangeal (DIP) joint is the most proximal point of edema spread in felon. Containment of the abscess within the compartment can lead to high pressures at the fingertip and possible visible sinus formation. If blood flow is compromised, skin and pulp necrosis may ensue. Other complications include osteoarthritis, tenosynovitis, and septic arthritis.
Risk factors include any immunocompromised state, diabetes mellitus, and intravenous (IV) drug use, as well as work environments with increased risk of finger trauma. Immunocompromised patients have an increased risk of developing osteomyelitis. In addition, gram-negative organisms may be causative agents.
Codes
L03.019 – Cellulitis of unspecified finger
SNOMEDCT:
32021005 – Felon
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Last Updated:07/05/2018