title: Cyst wall formation in pulmonary eosinophilic granuloma.
mesh_terms: D000293:Adolescent; D003560:Cysts / Q000209:etiology / Q000473:pathology*; D004803:Eosinophilic Granuloma / Q000150:complications / Q000473:pathology*; D005347:Fibroblasts; D006644:Histiocytes; D006801:Humans; D008171:Lung Diseases / Q000150:complications / Q000209:etiology / Q000473:pathology*; D008297:Male; D008854:Microscopy, Electron