PMC5239827_01
Postauricular sinus excision location.
CRIS2017-5791972.001.jpg
PMC5239827_01_CRIS2017-5791972.001.jpg
fig1
Postauricular pilonidal sinus specimen.
CRIS2017-5791972.002.jpg
PMC5239827_01_CRIS2017-5791972.002.jpg
fig2
Hematoxylin-eosin stained slides of a specimen of pilonidal sinus obtained from the scalp of a 46-year-old patient. (a) 40, (b) 100, and (c) 400 times magnification images.
CRIS2017-5791972.003.jpg
PMC5239827_01_CRIS2017-5791972.003.jpg
fig3
It was identified as a pilonidal sinus according to the pathology report findings of a free hair shaft into the dermis and foreign body type of intense inflammatory reaction (Figure 3).