Laryngeal Keratosis

**Semantic type:** Disease or Syndrome

**Definition:** A premalignant pathologic process that affects the mucosal epithelium of the larynx. It appears as a localized or diffuse white patch on the laryngeal mucosa. Morphologically it is characterized by the pathologic production of keratin in the mucosal epithelial surface with or without epithelial atypia. It may progress to or co-exist with invasive squamous cell carcinoma.

**Synonyms:** - Keratosis of Larynx - Keratosis of the Larynx - Laryngeal Leukoplakia