Nonsquamous neoplasms of the larynx.

While squamous cell carcinoma is the most common neoplasm to involve the larynx, several other histologic tumor types can occur. The laryngologist should consider a nonsquamous neoplasm when the tumor is long-standing, pigmented, covered by intact mucosa, or there is a history of neoplasia. Careful endoscopy, often using microlaryngoscopy, and careful handling of the tissue will ensure accurate diagnosis.