RT Book, Section
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
SR Print(0)
ID 1181044341
T1 Impetigo
T2 The Atlas of Emergency Medicine, 5e
YR 2021
FD 2021
PB McGraw-Hill
PP New York, NY
SN 9781260134940
LK accessemergencymedicine.mhmedical.com/content.aspx?aid=1181044341
RD 2024/04/19
AB Impetigo  is  a  contagious  bacterial  infection  of  the  superficial  skin  that  is  caused  by  Streptococcus  pyogenes  (group  A  β-hemolytic  Streptococcus)  and  S  aureus.  It  most  commonly  affects  children  2  to  5  years  of  age  and  usually  involves  the  face  and  extremities.  It  begins  as  small  vesicles  or  pustules  with  very  thin  roofs  that  rupture  easily  with  the  release  of  a  cloudy  fluid  and  subsequent  formation  of  honey-colored  crusts.  Variants  include  bullous  and  the  ulcerative  forms.  The  lesions  may  spread  rapidly  by  autoinoculation  secondary  to  scratching  and  coalesce  to  form  larger  areas  of  infection.  The  differential  diagnosis  includes  second-degree  burns,  varicella,  herpes  simplex  infections,  nummular  dermatitis,  superinfected  eczema,  and  scabies.