Translocation mosaicism in a woman having multiple miscarriages. 
We concluded cytogenetic studies on a couple who had had several spontaneous abortions.  The peripheral lymphocytes of the woman repeatedly showed a mosaic pattern with a structurally altered, apparently balanced, autosomal translocation between chromosomes 4 and 5.  Various studies were reviewed and it was concluded that the true frequency of structural rearranged mosaics in recurrent pregnancy loss is not known.