[Endocrine secretions by bronchial tumors].

Frequency of ectopic hormonal secretions by lung carcinomas is evaluated about 10 percent. Clinical and biological manifestations are less frequently registered than circulating hormonal products which can be considered as evolution markers of the disease. The main secretions and their clinical consequences are described: parathyroid hormone (PTH), calcitonin (CT), growth hormone (GH), antidiuretic hormone (ADH), corticotrophin hormone (ACTH) and gonadotrophins (HCG, LH, FSH). Problems raised by detection of these hormone-like acting products are studied and different hypothesis are suggested as explanation of these secretions.