<prompt> A full term neonate rapidly develops progressive respiratory distress shortly after birth, lung biopsy done post-mortem reveals the following, what is your diagnosis?Pulmonary hemorrhagePulmonary alveolar proteinosisPneumoniaPulmonary edema  <response>: Ans. b Pulmonary alveolar proteinosisThe alveoli are filled with a dense, amorphous, protein-lipid granular precipitate, while the alveolar walls are normal. 