A 50-year-old man presents with stupor and respiratory failure. Bronchoscopy reveals unusual bronchial casts causing complete lung collapse. What is the diagnosis?
A 50-year-old man with a history of several months of productive cough presented to the emergency department with stupor and hypercarbic respiratory failure. He was intubated. Chest radiograph several days later revealed complete collapse of the left lung. On bronchoscopy, several casts, as shown, were retrieved. Follow-up CT of the chest showed only bibasilar atelectasis. What is the etiology of his casts?
What is the most likely diagnosis?
Atelectasis, Bronchial Casts, Bronchoscopy, Plastic bronchitis, Respiratory Failure
