RT Book, Section A1 Doherty, Gerard M. SR Print(0) ID 58097682 T1 Pilonidal Disease T2 Quick Answers Surgery YR 2010 FD 2010 PB The McGraw-Hill Companies PP New York, NY SN LK accesssurgery.mhmedical.com/content.aspx?aid=58097682 RD 2024/04/19 AB • Acute, chronic, recurring abscess or chronic draining sinus over the sacrococcygeal or perianal region• An acquired infection of natal cleft hair follicles that become distended and obstructed and rupture into the subcutaneous tissues to form a pilonidal abscess• Hair from the surrounding skin is pulled into the abscess cavity by the friction generated by the gluteal muscles during walking