[Hyperparathyroidism in endocrinology and nephrology]

The literature on primary and secondary hyperparathyroidism is surveyed in the presentation of an account of the present positon. Reference is also made to personal clinical experience, particularly in secondary cases. The physiopathology of parathormone, calcitonin and vitamin D is described; the last, in fact, has proved useful in the treatment of secondary forms. The usual symptomatological tests of performance are explained, together with their diagnostic value. The clinical symptoms and their physiopathological significance are also illustrated. Stress is laid on the importance of conservative management in secondary forms. Good results now enable parathyroidectomy to be avoided or delayed in many cases.