THIS clinical study presents a survey of 240 cases of pilonidal sinus and/or cyst encountered at St. Mary's Hospital Group of Hospitals of St. Louis University School of Medicine from the time each hospital of the group was opened (St. Mary's Hospital, 1924 and Firmin Desloge Hospital, 1933) until October 1943. There is a total of 240 cases; 130 at St. Mary's Hospital and 110 at Firmin Desloge Hospital. The cases were studied in detail, and the results are as indicated in this paper.
The literature on the subject contains many papers, especially those dealing with the cause and the treatment of the condition,1 and a short discussion of the current views on the subject is presented.
According to Bacon,2 a pilonidal sinus is a congenital defect in the midline over the sacrococcygeal region, characterized by the formation of a tract in which are collected the by-products
BURNS FJ. PILONIDAL SINUS AND CYSTA Clinical Study. Arch Surg. 1946;52(1):33-41. doi:10.1001/archsurg.1946.01230050035002