A pilonidal dimple is a small pit or sinus in the sacral area just
at the top of the crease between the buttocks. The pilonidal dimple
may also be a deep tract, rather than a shallow depression, leading
to a sinus that may contain hair. During adolescence the pilonidal
dimple or tract may become infected forming a cyst-like structure
called a pilonidal cyst. These pilonidal cysts may require surgical
drainage or total excision to prevent reinfection.
Review Date: 12/17/2010
Reviewed By: Kevin Berman, MD, PhD, Atlanta Center for Dermatologic Disease,
Atlanta, GA. Review provided by VeriMed Healthcare Network. Also
reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc.
A.D.A.M., Inc. is accredited by URAC, also known as the American Accreditation HealthCare Commission (www.urac.org)