A Case of Pilonidal Sinus Mimicking Inflammatory Epidermal Cyst / 대한피부과학회지

ABSTRACT

Pilonidal sinus is one of a follicular occlusion tetrad, and is a chronic inflammatory disease that is associated with hair; a midline hairy patch or pit in the sacral region with a sinus orifice in the bottom, or a cyst beneath it, in which hair is growing. The exact pathogenesis of pilonidal sinus remains unknown, but hair insertion may be the essential cause of the disease. It is usually treated by radical excision, marsupialization or incision and curettage. However, these surgical options often lead to a high recurrence rate, especially for hirsute patients. Wide excision and simple primary closure of the pilonidal sinus is an easy, simple method and the recurrence rate is low. We report here the case of an 18-year-old male patient with recurrent pilonidal sinus mimicking inflammatory epidermal cyst. The pilonidal sinus was treated by wide excision and primary closure.