Arytenoid cartilage dislocation caused by a laryngeal mask airway treated with chemical splinting.
Spontaneous reposition of a dislocated arytenoid cartilage.
Arytenoid cartilage dislocation following prolonged endotracheal intubation.
8) It is interesting to note that in 2 of these patients, botulinum toxin was injected into the thyroarytenoid muscle to "diminish forces pulling the vocal process away from the body of the arytenoid cartilage.
The body of the arytenoid cartilage develops from branchial arch mesoderm and is made up of hyaline cartilage, and the vocal process originates in pharyngeal floor mesoderm and is made up of elastic cartilage.
The arytenoid cartilage serves as the primary fulcrum in vocal fold movement, and it articulates with the cricoid ring via the synovial cricoarytenoid joints.
Flexible laryngoscopy incidentally identified a thick white plaque that measured 4 to 5 mm in its widest dimension on the right arytenoid cartilage (figure 1).
At follow-up 2 weeks later, nasopharyngolaryngoscopy detected another white lesion in the right arytenoid cartilage at the same site where the original lesion had arisen (figure 3).
2] laser excision of the superior half of the right arytenoid cartilage and adjacent soft tissue.
Frozen-section analysis of the margins indicated that the tumor had extended into the mucosa and soft tissues adjacent to the right arytenoid cartilage.
Laryngeal chondrosarcoma affects the cricoid cartilage (72% of cases) more than other laryngeal cartilages and more than thyroid and arytenoid cartilages
The tumor most commonly arises within the cricoid cartilage (specifically, the posterior lamina), although the thyroid and arytenoid cartilages
are occasionally affected.