the authors used immunohistochemical staining for s-100 protein to search for langerhans cells in 7 cases of pulmonary eosinophilic granuloma ( egl ) and in 18 cases of other pulmonary processes ( including reactive eosinophilic pleuritis , chronic interstitial pneumonias , eosinophilic pneumonia , and nonspecific scars ) , which can produce diagnostic confusion with egl .
C0023005
langerhans cells
C1455705
pulmonary eosinophilic granuloma