[Immunohistochemical localization of angiotensin converting enzyme in epithelioid sarcoidosis granulomas].

An immunohistochemical study of the localization of Angiotensin one Converting Enzyme in sarcoidosis granulomas was made in 20 cases of sarcoidosis. Immunoreactive Angiotensin one Converting Enzyme was found in 92% of these cases. At the cellular level the staining was observed on the plasma membrane. No correlation was observed between the serum Angiotensin one Converting Enzyme value and the immunostaining intensity.