One week ago my son, aged 16, had a cleft lift for a recurrent pilonidal sinus. I found the surgeon, Dr. Peter Masiokos, on this website. outstanding man! So far, so good. The surgery lasted 1.5 hours and my son has had minimal pain/discomfort in the past week. Dr. M is personable, knowledgeable and just plain awesome. Can’t speak highly enough of him.