A retired, hypertensive 67-year-old male, a former smoker and alcoholic, was referred to our facility with complaints of progressive dyspnea, wheezing and chest pain for the last 6 months. A chest X-ray obtained 8 years previously showed right hilar enlargement. He also had a long-standing history of episodic hemoptysis that ceased 10 years prior, together with a history of recurrent respiratory infections. Upon physical examination, he presented diminished breath sounds and slight crackles at the lung bases. A second chest X-ray revealed no changes in comparison with the first. The IntroductionThe amyloidoses constitute a group of diseases in which extracellular protein folding, or rather misfolding, plays a prominent role.(1) The disease can be hereditary or acquired and can be systemic or localized. Some patients are asymptomatic, whereas others exhibit a range of symptoms, and, in certain cases, the disorder can even be severe and life-threatening.(2) Tracheobronchial amyloidosis is an uncommon localized form of amyloidosis, characterized by amyloid deposits restricted to the trachea, main bronchi and segmental bronchi. AbstractTracheobronchial amyloidosis is an uncommon localized form of amyloidosis, characterized by amyloid deposits restricted to the trachea, main bronchi and segmental bronchi. We present the case of a retired 67-year-old man with long-term progressive dyspnea, wheezing and chest pain. A diagnosis of tracheobronchial amyloidosis was made after the third fiberoptic bronchoscopy and histological confirmation through Congo red staining of tissue samples.Keywords: Amyloidosis/trachea; Bronchoscopy; Tracheal diseases/diagnosis. ResumoA amiloidose traqueobrônquica é uma forma pouco comum de amiloidose localizada, caracterizada por depósitos amilóides limitados à traquéia, brônquios principais e brônquios segmentares. Nós apresentamos o caso de um homem aposentado de 67 anos com dispnéia progressiva de longa data, sibilância e dor torácica. O diagnóstico de amiloidose traqueobrônquica foi realizado após três fibrobroncoscopias e confirmação histopatológica com coloração vermelho congo.Descritores: Amiloidose/traquéia; Broncoscopia; Doenças da traquéia/diagnóstico.
Tumor de células granulares (TCG) é um termo descritivo para um tumor com histologia distintiva, perfil imunohistoquímico característico e achados ultra-estruturais peculiares. Tem distribuição topográfica ampla e sua localização nas vias aéreas é considerada incomum. Os autores relatam o caso de uma mulher de 40 anos com tosse produtiva e febre há dois meses e exame físico normal. A tomografia computadorizada evidenciou espessamento de parede do brônquio intermediário e a broncoscopia mostrou, nesse nível, hiperemia e elevação da mucosa endobrônquica. Os exames histopatológicos e imunohistoquímico dos tecidos deste local diagnosticaram TCG. O objetivo do presente relato é chamar a atenção para a possibilidade de diagnóstico desse tumor em pequenas biópsias endoscópicas.
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