[Pseudohypoparathyroidism: a familial case].

The pseudohypoparathyroidism is a rare disease which progresses with hypocalcemia despite the high levels of PTH. Clinically, there are three different types of pseudohypoparathyroidism, depending on the urinary elimination of AMPc, the presence of Albright's osteodystrophy and the response to exogenous PTH. It is detected occasionally, as it was the case of the family that we present here, in which 6 of the 9 members from the two last generations were affected by this entity.