[Significance of increased serum leucine-amino-peptidase (LAP) in patients with primary malignant bronchiogenic neoplasia].

After a little introduction about the elements that normally caused an elevation of the LAP-serum (leucine-aminopeptidase), the authors point out the elevation of this enzyme in subjects with neoplastic diseases especially in the female genitalia. The authors will have studied in this work the LAP comportment in subjects with bronchial neoplasm; the authors found in 12 cases of bronchial malignant neoplasm controlled by histological-test (biopsy during bronchoscopy a constant elevation of serum LAP that they relate for causes not certain, to the neoplasm presence. Was not elevation in the metastases pulmonary neoplasm. the authors conclude pointing out the LAP a very important element in precocious diagnosis of neoplastic diseases also the bronchial level, when this elevation in the serum not find explanation in a pathological hepatic disease.