Kenny-Caffey syndrome in six Bedouin sibships: Autosomal recessive inheritance is confirmed

We are reporting on 16 children, in 6 unrelated sibships, born to healthy, consanguineous parents of Bedouin ancestry. Eleven of them were assessed clinically. All presented with marked growth retardation, craniofacial anomalies, small hands and feet, hypocalcemia, hypoparathyroidism, radiological evidence of cortical thickening of long bones with medullary stenosis, and absent diploic space in the skull. There was a history of 6 affected sibs dying in infancy with hypocalcemic convulsions. All cases show absence of macrocephaly and early psychomotor retardation. The present cases confirm the presence of clinical variability and co firm autosomal recessive inheritance of Kenny-Caffey syndrome.