Colchicine Treatment for Tracheobronchial Amyloidosis

Tracheobronchial amyloidosis is an infrequent disease characterized by the deposition of proteinaceous material in the tracheobronchial tree. The disease generally has a high morbidity and variable mortality in the years following diagnosis. There is no consensus on the optimal treatment. We report a case of a 63-year-old woman who presented with a diffuse tracheobronchial amyloidosis associated with laryngeal involvement, which required a percutaneous tracheostomy due to high-grade subglottic stenosis, with no evidence of systemic amyloidosis. After treatment exclusively with colchicine, she had a complete resolution of the stenotic area, with a very good response from the tracheobronchial amyloidosis disease, with only minor yellow plaques persisting. The patient has remained asymptomatic in the next 4 years of follow-up, with no evidence of endoscopic progression. This is the first documented case of this kind of response of tracheobronchial amyloidosis to colchicine treatment alone. A review of the available literature is presented.
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