TY  - CHAP
M1  - Book, Section
TI  - Exostosis
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
Y1  - 2021
N1  - 
T2  - The Atlas of Emergency Medicine, 5e
AB  - Exostoses  are  seen  on  otoscopy  as  discreet  single  or  multiple  round  shiny  swellings  deep  in  the  bony  external  auditory  canal  (EAC).  They  are  usually  asymptomatic,  an  incidental  finding  on  exam,  and  extremely  slow  growing.  The  inferior  canal  walls  anteriorly  and  posteriorly  are  hypertrophied,  with  a  resultant  “V”  shape.  Rarely  they  enlarge  enough  to  occlude  the  EAC.  They  are  usually  bilateral  and  are  thought  to  develop  in  response  to  repeated  cold  water  exposure,  such  as  frequent  swimmer  or  divers.  Hearing  loss,  ear  infection,  pain,  and  tinnitus  may  arise  when  they  enlarge  sufficiently  to  interfere  with  the  normal  self-cleansing  of  cerumen  and  desquamated  keratin,  leading  to  external  otitis  or  conductive  hearing  loss  from  impacted  cerumen.  
SN  - 
PB  - McGraw-Hill
CY  - New York, NY
Y2  - 2024/04/19
UR  - accessmedicine.mhmedical.com/content.aspx?aid=1181040015
ER  -