A pilonidal sinus is a small infected tract or a network of interlinking tracts under the skin between the buttocks. The exact cause is unknown but it may be from loose hairs pushing into the skin, ...

From the Department of Surgery, Peter Bent Brigham Hospital, Boston, Massachusetts. Glenn — On staff of the New York Hospital, New York City. For record and address of author see "This Week's Issue," ...

The Lahey Clinic, Boston, Mass. Cattell — Surgeon, Lahey Clinic. Stoller — Formerly Assistant in Surgery, Lahey Clinic. For records and addresses of authors see ...

DEAR DR. ROACH: I am writing because my son had a pilonidal cyst removed in March of 2010, almost three years ago. For the first six months, I kept the area clean and free of hair. After six months ...

To inform the committee, NICE did a rapid review of the published literature on the efficacy and safety of this procedure. This comprised a comprehensive literature search and detailed review of the ...