Severe acro-renal-uterine-mandibular syndrome.

Although limb and renal defects occur together in a variety of patterns of multiple malformations, familial cases of acro-renal disorders are rare. In 1980, Halal et al. ¿Am J Med Genet 5:277-284 described two sisters with unusual limb deficiencies, renal anomalies, and mandibular hypoplasia and termed this condition acro-renal-mandibular syndrome. A girl reported earlier by Fitch and Lachance ¿1972; Can Med Assoc J 107:653-656 had similarly limb and renal findings, but an apparently normal jaw. We document three sibs with unusual limb deficiencies, renal agenesis, uterine anomalies in the two females, and orofacial defects, who clearly have a similar but more severe type of acrorenal disorder, apparently inherited as an autosomal recessive condition. The sibs with limb deficiencies and renal agenesis reported by Hennekam et al. ¿1994; Am J Med Genet 53:102-107 appear to be additional cases of this very rare disorder, the pathogenesis of which may be related to abnormal epithelial-mesenchymal interactions.