Weill-Marchesani syndrome: report of an unusual case.

We report a single case of Weill-Marchesani syndrome, typically characterized by progressive joint stiffness, brachiymorphy, brachydactyly, and ectopia lentis. The clinical case appears particularly interesting as the patient also had primary osteoporosis, which until now has not been considered as a possible manifestation of Weill-Marchesani syndrome.