29th January 2024

A 32-year-old woman is referred to the respiratory clinic for bilateral pulmonary infiltrates, as shown on a recent CXR.

A 32-year-old woman is referred to the respiratory clinic for bilateral pulmonary infiltrates, as shown on a recent CXR. She has a history of type 1 diabetes mellitus and asthma. Recently, she has been feeling more lethargic than usual but has otherwise been well with no fevers or rash. Her anti-myeloperoxidase (MPO) is positive with a normal ESR. 

Which of the following diagnoses most likely explains her CXR findings?