[Voluminous epidermoid cyst compressing the upper cervical spinal cord: about a clinical case].

Epidermoid cyst is a benign embryonic tumor. It is an anomalous localization of ectoderm-derived tissue. Cervical epidermoid cyst is rare. It can cause diagnostic difficulties, especially in patients with voluminous and compressive cysts. We report a case of large epidermoid cyst of the neck with signs of compression of the upper aerodigestive tract. The patient underwent cervicotomy with mass resection. Pathological examination of the surgical specimen showed epidermal cyst.