Branchial cleft cyst

Branchial cleft cyst

Branchial cleft cyst is a type of congenital cyst predominantly found in the neck. It originates from the remnants of the branchial arches, structures that are present during embryonic development.

Overview

A branchial cleft cyst is a benign cystic mass, commonly located on the lateral part of the neck. It's associated with the embryonic development of the branchial or pharyngeal arches, which are a series of bony and muscular structures that give rise to various components of the face, neck, and throat.

Development and Anatomy

The branchial apparatus, present in the embryonic stage, consists of branchial arches, clefts (or grooves), and pouches. As development progresses, these structures usually form different parts of the head and neck. Occasionally, remnants of the branchial arches don't disappear and lead to the formation of branchial cleft cysts.

Xray of the development and location of branchial cleft cysts.

Symptoms

While a branchial cleft cyst is congenital, symptoms may not be noticeable until later in life. Common manifestations include:

• A palpable lump on one side of the neck
• Occasional pain or discomfort
• Swelling or redness, especially if the cyst becomes infected
• Discharge from a sinus tract in the neck

Diagnosis

Diagnosis typically involves a combination of physical examination, ultrasound, and sometimes fine-needle aspiration. MRI and CT scan can provide additional details about the size, location, and relationship of the cyst to surrounding structures.

Treatment

The mainstay of treatment for branchial cleft cysts is surgical excision. This ensures that the cyst does not become recurrently infected or enlarge over time. Antibiotics may be prescribed if there is evidence of an infection.

Prognosis

After surgical removal, the prognosis is generally excellent. Recurrence is rare but can happen if the cyst is not entirely excised.

See Also

• Congenital anomalies
• Neck masses
• Thyroglossal duct cyst

References

Branchial cleft cyst Resources
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