Arkadiusz Peter Wysocki1,2,3. 1. Department of Surgery, Logan Hospital, Corner Meadowbrook and Loganlea Roads, Meadowbrook, QLD, 4133, Australia. arek_p@ecn.net.au. 2. Griffith Health Centre - G40, Griffith University Medical School, 58 Parklands Drive, Southport, QLD, 4215, Australia. arek_p@ecn.net.au. 3. Australian Pilonidal Sinus Society, Mount Gravatt East, QLD, 4122, Australia. arek_p@ecn.net.au.