Midline cervical cleft

Midline cervical cleft (MCC), also known as congenital midline cervical cleft, is a rare congenital anomaly of the anterior neck. It is present at birth and results from a failure of fusion of the branchial arches during embryonic development. The condition manifests as a vertical, skin-deficient defect along the midline of the anterior neck, typically extending from the chin (submental region) toward the sternal notch. The cleft is characterized by a nipple-like skin projection (skin tag) at its superior end, a sinus tract or blind-ending fistula at its inferior end, and an atrophic, erythematous midline skin defect between these two landmarks. A subcutaneous fibrous cord may also be present beneath the cleft, which can cause contracture and restrict neck extension if left untreated. Midline cervical cleft primarily affects the skin and subcutaneous tissues of the anterior neck. While it is generally an isolated anomaly, it can occasionally be associated with other branchial arch anomalies. The condition does not typically affect internal organs but can lead to functional and cosmetic concerns. The fibrous cord beneath the defect may progressively limit neck movement and contribute to mandibular growth disturbances if surgical correction is delayed. Treatment is surgical and is recommended early in life, ideally within the first few months to years, to prevent contracture formation and optimize cosmetic outcomes. The procedure involves complete excision of the cleft, including the skin tag, sinus tract, and fibrous cord, followed by reconstruction using Z-plasty or similar techniques to minimize scarring and prevent recurrence of contracture. Surgical outcomes are generally excellent, and recurrence is uncommon when the lesion is completely excised. There is no medical or pharmacological treatment for this condition.

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