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Pilonidal Sinus
Pilonidal Sinus Learning Center

Pilonidal Sinus
A pilonidal cyst is a small pit, or dimpled area, that can occur anywhere along the crease between the buttocks (sacral area.
A pilonidal sinus (PNS) is a small cyst or abscess that occurs in the cleft at the top of the buttocks. It can cause severe pain and often...
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