External laryngocele is a herniation that arises from which of the following membrane?
Correct Answer: Thyrohyoid membrane
Description: A laryngocele is an air filled herniation of the saccule of the laryngeal ventricle. It is caused by a prolonged increase in intraglottic pressure in patients with a predisposing long sacculus. Laryngoceles are of two types internal and external. Internal laryngocele: are confined within the larynx and appear as cystic swellings of the aryepiglottic fold. External laryngocele: extend through the thyrohyoid membrane and lie lateral to the thyroid cailage.
Category:
ENT
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