Prenatal three-dimensional ultrasound diagnosis of a camptomelic dysplasia.

We describe a case of camptomelic dysplasia identified prenatally with the assistance of three-dimensional ultrasonography. The typical skeletal dysplasia of camptomelic dysplasia - including anterior bowing of the tibia, with skin dimpling over a convex surface at the point of maximal deformity, and talipes equinovarus - was successfully identified using the techniques of surface-rendering, multiplanar displays and rotated volume data. Three-dimensional ultrasonography allows the diagnosis of camptomelic dysplasia, which has a poor prognosis as it is accompanied by respiratory insufficiency and spinal deformities, to be made without delay and provides information supplementary to that provided by two-dimensional ultrasound for early diagnosis of skeletal dysplasia.