Severe limb abnormalities: analysis of a cluster of five cases born during a period of 45 days.

We report on 5 individuals with severe limb abnormalities born in our hospital within a period of 45 days. Detailed clinical descriptions, photographs, and radiographs are presented. Etiological evaluations included genetic background, obstetric history, invasive procedures during pregnancy, maternal infectious diseases or maternal hyperthermia, drug use before and during pregnancy, and occupational or recreational exposures of both parents.