[The study of parathyroid hormone in the serum of patient with hypopharyngeal cancer].

Measurements of parathyroid hormone concentrations were made in the serum of patients with vestibular larynx before treatment, after radiation treatment and after radiation treatment followed by surgery. Patients with laryngeal cancer were found to have impaired calcium metabolism, their serum parathyroid hormone concentrations were elevated. After radiotherapy, in a favorable clinical course, patients with cancer of the vestibular larynx stage II show normalization of the hormone levels, whereas the above combined treatment diminished the concentrations, but they still remain above normal.