Pulmonary Alveolar Proteinosis: A case report.
- Author:
Chang Ho CHO
;
Yoon Kyung SOHN
;
Jyung Sik KWAK
;
Jung Yoon CHOI
;
Won Sik LEE
;
Tae Hoon JUNG
- Publication Type:Case Report
- Keywords:
Pulmonary alveolar proteinosis;
Lamellar body
- From:Korean Journal of Pathology
1991;25(3):263-268
- CountryRepublic of Korea
- Language:Korean
-
Abstract:
A case of pulmonary alveolar proteinosis is reported. Most of the alveolar spaces were filled with amorphous deep eosinohilic material which revealed strong positive reaction to periodic acid-Schiff staining. Electron microscopic observation of this material showed numerous lamellar bodies in the alveolar spaces and cytoplasms of alveolar macrophages. A part of them were concentric multilamellated type A lamellar bodies and the other were finger printlike type B bodies. Combined type A and type B lamellar bodies were rarely present. From the above features it is suggested that both type A and B lamellar bodies could be transformed one another and those lamellar bodies may be originated from pulmonary surfactant.
