to determine whether the lymphocytes recovered by bronchoalveolar lavage ( bal ) are representative of the cells found in lung tissue , we identified and enumerated lymphocyte phenotypes directly in lung tissue and lavage fluid with monoclonal antibodies ( leu 4-total t , leu 3-helper t , leu 2-suppressor/cytotoxic t cells ) and an avidin-biotin peroxidase method in 6 patients with sarcoidosis and 6 patients with idiopathic pulmonary fibrosis ( ipf ) .
C0819757
lung tissue
C0024109
lung