Sonographic Evaluation of a Pilonidal Cyst: A Case Study

Pilonidal cysts are collections of hair or skin debris located most commonly on or near the natal cleft of the buttocks. These cysts can become infected and cause swelling and bleeding at the site. Once infected, the condition is then termed a pilonidal abscess, and treatment should be followed. Several options are available for treating a pilonidal abscess, depending on the extent of the condition and the patient's response to antibiotic therapy. This case study of a pilonidal abscess demonstrates the important information that sonography adds to the diagnosis and treatment of this condition.