RT Book, Section
A1 Jauch, Edward C.
A1 Hall, Gregory
A1 Knoop, Kevin J.
A2 Knoop, Kevin J.
A2 Stack, Lawrence B.
A2 Storrow, Alan B.
A2 Thurman, R. Jason
SR Print(0)
ID 1176322364
T1 Preauricular Sinus Abscess
T2 The Atlas of Emergency Medicine, 5e
YR 2021
FD 2021
PB McGraw-Hill
PP New York, NY
SN 9781260134940
LK accessmedicine.mhmedical.com/content.aspx?aid=1176322364
RD 2021/04/16
AB A  preauricular  sinus  is  a  common  congenital  malformation  of  the  preauricular  soft  tissues.  It  is  a  sinus  located  near  the  front  of  the  ear  and  is  lined  with  squamous  epithelium  and  thus  may  produce  epithelial-lined  subcutaneous  cysts,  which  may  become  infected,  leading  to  cellulitis  or  abscess.  Patients  may  have  other  congenital  anomalies  such  as  hearing  loss  or  renal  disease.  Patients  may  present  with  recurrent  ear  discharge,  pain,  swelling,  redness,  itching,  headache,  and  fever.  The  diagnosis  is  often  overlooked  in  early  stages.