Table 2.

Key features of a laryngeal chondroma

Rare lesions. May be less common than laryngeal chondrosarcoma, but the true incidence is difficult to judge from older reports in which the distinction from chondrometaplasia and low-grade chondrosarcoma may sometimes have been imperfect

Symptomatic lesions cause airway obstruction or a palpable mass in the neck

Usually found in the vicinity of the cricoid cartilage, thyroid cartilage, epiglottis, and arytenoids

May be a few cm in diameter and usually smaller than a laryngeal chondrosarcoma

Hyaline cartilage, small, monomorphous nuclei without significant nuclear details, no mitoses

No transition zone (in contrast to chondrometaplasia)

Differential diagnosis: chondrometaplasia, low-grade chondrosarcoma (and, most rarely, laryngeal hamartomas)

May recur following excision, but this is uncommon, no metastatic potential