History
PAP was first described in 1958 by the physicians Samuel Rosen, Benjamin Castleman, and Averill Liebow. In their case series published in the New England Journal of Medicine on June 7 of that year, they described 27 patients with pathologic evidence of periodic acid Schiff positive material filling the alveoli. This lipid rich material was subsequently recognized to be surfactant.
Read more about this topic: Pulmonary Alveolar Proteinosis
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