A familial reciprocal translocation t(3;7) (p21.1;p13) associated with the Greig polysyndactyly-craniofacial anomalies syndrome.

A translocation t(3;7) (p21.l;p13) segregating through four generations was found to be invariably associated with the Greig cephalopolysyndactyly syndrome (GS). High resolution chromosome analyses using G and R banding did not uncover any imbalance of the affected chromosomes, nor were the late replicating patterns changed. One girl with the GS died of medulloblastoma.