[Neuron-specific enolase in bronchial carcinoma. Immunohistochemical and immunoenzyme study]

Serum level of neuro-specific enolase (NSE) was determined in 20 lung cancer patients. NSE concentration was detected also on neoplastic tissue and NSE-positive neoplastic cells on histological sections were observed immunohistochemically. The presence of high level of NSE was showed in small cell lung cancer.