Moderate-to-severe chronic pilonidal disease

Typical appearance of moderate-to-severe chronic pilonidal disease with the patient prone and buttock cheeks retracted apart with tape.

Reproduced with permission from: Johnson EK. Pilonidal disease and hidradenitis suppurativa. In: The ASCRS Textbook of Colon and Rectal Surgery, 3rd ed, Steele SR, Hull TL, Read TE, et al. (Eds), Springer 2016. Copyright © 2016 American Society of Colon and Rectal Surgeons.

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