All are true about external laryngocele except:
A laryngocele is an air sac formed by dilatation and prolongation of laryngeal saccule and is in communication with the ventricle. It herniates through thyrohyoid membrane.
Produces a swelling in the neck on Valsalva
Communicates with laryngeal ventricle
Can be seen on CT
Herniates through cricothyroid membrane
Larynx