[Differential diagnosis of hyperparathyroidism].

A great variety of clinical symptoms makes differential diagnosis of hyperparathyroidism difficult (only in 46.5% of patients sent to the clinic with the mentioned diagnosis was it confirmed). Complex clinical laboratory, and roentgenological examination of the patients permit to confirm or refute the diagnosis. Of the greatest significance in the differential diagnosis of hyperparathyroidism are blood serum phosphorus content, phosphorus reabsorption index, and a test with parathyrodin.