Langerhans Cells and Serum Precipitating Antibodies against Fungal Antigens in Bronchioloalveolar Cell Carcinoma: Possible Association with Pulmonary Eosinophilic Granuloma
Authors:
- 1 January 1980
- journal article
- research article
- Published by Taylor & Francis in Ultrastructural Pathology
- Vol. 1 (1) , 19-37
Abstract
In an ultrastructural study of 37 cases of bronchioloalveolar cell carcinoma (BAC), we identified seven cases (19%) in which Langerhans cells (LC) were closely associated with tumor cells. Serum precipitating antibodies against Aspergillus species and/or thermophilic actinomyces were present in five BAC patients whose tumors contained LC and in six patients whose tumors lacked LC. In a simultaneous study we identified marked atypical bronchiolar and alveolar lining cell hypertrophy and hyperplasma in pulmonary eosinophilic granuloma (PEG). Our data plus current information suggesting that PEG is a form of hypersensitivity pneumonitis support our hypothesis that those cases of BAC in which LC are present may arise in localized or diffuse pulmonary scars caused by PEG.Keywords
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