Cervical dermoid cyst

A cervical dermoid cyst is a rare congenital developmental anomaly that presents as a cyst in the neck (cervical) region. Dermoid cysts are benign, encapsulated growths that arise from ectodermal elements trapped along embryonic fusion lines during fetal development. They are lined by keratinized stratified squamous epithelium and may contain skin appendages such as hair follicles, sebaceous glands, and sweat glands, as well as fatty material and sometimes cartilage or bone. Cervical dermoid cysts are classified among congenital malformations of the face and neck. Clinically, a cervical dermoid cyst typically presents as a slow-growing, painless, firm or doughy midline or lateral neck mass. It is most commonly detected in infancy or childhood, though some cases may not become apparent until adulthood. The cyst is usually mobile and non-tender, but it can become symptomatic if it grows large enough to compress adjacent structures such as the airway or esophagus, potentially causing difficulty breathing or swallowing. Secondary infection of the cyst can lead to pain, redness, and swelling. The primary treatment for cervical dermoid cysts is complete surgical excision, which is both diagnostic and curative. Recurrence is uncommon when the cyst is entirely removed. Imaging studies such as ultrasound, CT scan, or MRI are typically used preoperatively to characterize the mass and plan the surgical approach. The prognosis following complete excision is excellent, with very low rates of recurrence and no risk of malignant transformation in the vast majority of cases.

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