Epidermoid and Dermoid Cysts of the Head and Neck

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Abstract
Epidermoid and dermoid cysts (ECs and DCs) are congenital anomalies occurring in areas of embryonic fusion. Their incidence in the head and neck region is low and ranges from 1.6% to 7%. The aim of this study is to report on the clinical characteristics, treatment, and outcome of 22 patients from a single-institution experience. A retrospective analysis of patients treated for ECs and DCs of the head and neck over a 12-year period was performed. The present study included 22 patients (male/female ratio 1:1). The mean age of presentation was 11.68 years. The lesions were distributed in the orbital regions in 7 (31.82%) patients, auricular regions in 6 (27.27%), neck regions in 5 (22.73%), floor of the mouth in 3 (13.64%), and nose in 1 (4.55%). Complete surgical excision was performed as a definitive treatment method in 21 patients (95.45%). The mean size of the excised lesions was 21.36 mm at the widest length (range: 10–70 mm). On the basis of histopathological examinations, 15 (71.43%) lesions were classified as ECs and 6 (28.57%) as DCs. Post-operative complications were noted in 3 (14.29%) patients––2 (9.52%) with recurrences and 1 (4.76%) with hypertrophic scarring. All of these patients were successfully cured after a second surgery. The ECs and DCs of the head and neck present an interesting diagnostic and therapeutic challenge. Successful management depends on a thorough knowledge of their clinical and radiological features.

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