Thyroid & Adrenal
What is true about branchial cyst?
|A||Cyst are more common than sinuses|
|B||Sinus should always be operated|
|C||Mostly arise from 2nd branchial arch|
|D||Cause dysphagia and hoarseness|
a. Pathogenesis: The 2nd branchial arch migrates towards the surface and overgrows the 3rd and 4th arches and ultimately fuses with the 4th arch forming the cervical sinus.
b. Normally this disappears.
c. But if it persists, accumulation of fluid occurs inside the sinus giving rise to a cystic swelling known as branchial cyst.
d. Clinical features: cystic swelling on lateral side of neck, below the angle of jaw, beneath the middle of sternocleidomastoid and bulging forward around the anterior border of muscle into carotid triangle (at junction of muscle's upper and middle third)
e. Content: The cyst contains cheesy material containing cholesterol crystals.
f. Treatment: Excision
a. MC etiology – congenital
b. Sinus is more common than fistula
c. Internal opening of the fistula is present in the intratonsillar cleft or pyriform fossa.
d. External opening is lower than the cyst and at the junction of middle and lower Third anterior border of
e. Treatment is complete excision.