Primary Laryngotracheal Amyloidosis Masquerading as Malignancy.

Amyloidosis represents a heterogeneous group of disorders characterized by the deposition of amyloid protein in various target organs of the body. Amyloidosis is classified as systemic or local. Larynx is the common site for localized amyloid deposition and patient usually presents with hoarseness of voice. Because of the similar clinical and imaging features to malignant laryngeal mass, diagnostic confusion occurs and histopathological confirmation is usually needed. Although laryngeal tracheo-bronchial amyloidosis is rare, it should be considered among the differentials of benign laryngeal tumors.