TY - CHAP M1 - Book, Section TI - Felon A1 - Ritter, Kathryn A1 - Fitch, Robert Warne A2 - Knoop, Kevin J. A2 - Stack, Lawrence B. A2 - Storrow, Alan B. A2 - Thurman, R. Jason Y1 - 2021 N1 - T2 - The Atlas of Emergency Medicine, 5e AB - A felon is a distal digital pulp space pyogenic infection. Pus collects in spaces formed by the vertical septa anchoring the pad to the distal phalanx. It is characterized by severe pain, exquisite tenderness, erythema, and tense swelling of the distal digit. Visible pus or palpable fluctuance may be present. Complications include deep ischemic necrosis, osteomyelitis, septic arthritis, and suppurative tenosynovitis. The differential includes paronychia, herpetic whitlow, and traumatic hematoma. SN - PB - McGraw-Hill CY - New York, NY Y2 - 2024/10/10 UR - accessemergencymedicine.mhmedical.com/content.aspx?aid=1181043480 ER -