Patterson-Lowry rhizomelic dysplasia: report of two new patients.

We report two new patients with the Patterson-Lowry rhizomelic dysplasia characterized by very short humeri, coxa vara with proximal femoral epiphyseal involvement, short metacarpals, metatarsals and phalanges. The expression of clinical and radiological characteristics is significantly variable, but the unique proximal metaepiphyseal appearance of humeri makes the syndrome easily identifiable. All the reported patients are sporadic. The genetics of the syndrome remain unclear for the moment.