Pulmonary alveolar proteinosis (PAP) is a rare disease characterized by alveolar filling. YKL‐40, a chitinase‐like protein produced by macrophages and epithelial cells, is increased in patients with interstitial lung diseases.… Click to show full abstract
Pulmonary alveolar proteinosis (PAP) is a rare disease characterized by alveolar filling. YKL‐40, a chitinase‐like protein produced by macrophages and epithelial cells, is increased in patients with interstitial lung diseases. We aimed to evaluate the role of YKL‐40 as a biomarker for PAP.
               
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