Two siblings with asphyxiating thoracic dystrophy developed rapidly-pr
ogressive renal failure at four years of age. Their parents were first
cousins. Both were treated by a kidney transplant from a family membe
r. The renal outcome was satisfactory. Liver function tests done after
the transplant procedure showed cytolysis and cholestasis. There was
no evidence of viral hepatitis, and the liver biopsy was normal, with
no fibrosis. Liver function tests returned to normal one year later at
the same time as the cyclosporin dose was decreased. At last follow-u
p one and two years after kidney transplantation, respectively, both c
hildren had normal kidney and liver function tests.