Chromosome banding anomalies in acute myeloid leukaemia.

Chromosome analysis in two cases of acute myeloid leukaemia are reported. On the basis of slight aberrations in the banding pattern marker chromosomes were observed in both cases. In one case a widened C-band of an additional D chromosome, and in the other case an unusual negative fluorescent band below the centromere of one of the chromosomes 16, were seen.