TY - CHAP M1 - Book, Section TI - Blistering Distal Dactylitis A1 - Shah, Ashish A1 - Sobolewski, Brad A1 - Mittiga, Matthew R. 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 - Blistering distal dactylitis is a cellulitis of the fingertip caused by group A β-hemolytic Streptococcus or, less often, S aureus infection in children from infancy to teenage years. The typical lesion is a seropurulent, fluid-filled, painful, tense blister with surrounding erythema located over the palmar fat pad on the distal portion of a finger or toe. Polymorphonuclear leukocytes and gram-positive cocci can be found in the Gram stain of the purulent exudate from the lesion. The differential diagnosis includes bullous impetigo, burns, friction blisters, paronychia, felon, and herpetic whitlow. SN - PB - McGraw-Hill CY - New York, NY Y2 - 2024/04/18 UR - accessemergencymedicine.mhmedical.com/content.aspx?aid=1181044461 ER -