system
Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
user
BAL of a patient shows foamy macrophages with decreased CD4: CD8 ratio. What is the diagnosis?
assistant
The correct answer is  Organising pneumonia Foamy macrophages in BAL with low CD4: CD8 ratio Hypersensitivity pneumonitis Marked lymphocytosis Sarcoidosis Marked lymphocytosis with CD4: CD8 ratio of >3.5 Diffuse alveolar hemorrhage Hemosiderin laden macrophages