- Gustavo Chatkin: Hospital São Lucas, Pontifícia Universidade Católica do Rio Grande do Sul, Porto Alegre, RS, Brasil.
Amyloidosis is a disease characterized by extracellular deposition of fibrillar protein in organs and tissues. Primary tracheal Amyloidosis is rare. We report here a case of a 55-year-old man with tracheal Amyloidosis hospitalized for acute respiratory insufficiency and with a history of recent episodes of pneumonia. Chest X-ray and chest computed tomography showed tracheal obstruction due to a tumor. A passage was created in order to relieve the symptoms. Histological examination (Congo red staining) revealed amyloid deposits but no evidence of neoplasia. Although this is a rare clinical condition, its importance is discussed regarding the differential diagnosis of tracheal tumors and the repercussions for therapeutic decision-making.