摘要
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.