A Case of Successful Low-Invasive and Reliable Excision of a Large Epidermal Cyst Using a Suction System.

Epidermal cysts are common benign tumors typically treated through surgical excision, which may result in significant scarring. Moreover, larger cysts are associated with increased surgical invasiveness and a greater burden on the patient. This report presents a case of successful treatment of a large epidermal cyst using a small-incision technique combined with suction-assisted negative pressure. The method involved a minimal incision, aspiration of cyst contents using a suction cannula, and removal of the cyst wall. Incorporating magnetic resonance imaging into the preoperative planning further enhanced the precision of the treatment. A 16-cm cyst was completely cured without recurrence over a follow-up period exceeding 5 years. This approach minimized scarring and simplified the surgical procedure.