Pilonidal Sinus Definition Terminology Encyclopedia Online
A pilonidal cyst is a cyst that develops along the tailbone (coccyx) near the cleft of the buttocks.
Have you ever had an ingrown hair that seemed to grow beneath the surface?
Pilonidal disease is a chronic infection of the skin in the region of the buttock crease (Figure 1).
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Pilonidal Cyst and Sinus
Pilonidal disease is described back as far as 1833, ...