Congenital Leukemia: Two Transient Regressions Without Treatment in One Patient

Abstract

In Reply.— The cases of congenital leukemia described by Warner et al further illustrate the interesting but poorly understood features of congenital leukemia. In the last 20 years in our hospital, there have been five cases of congenital leukemia, all diagnosed between 1975 and 1979.1 These five infants developed leukemia between ages 1 day and 8 weeks. As we pointed out in our paper, there is some difficulty in classifying the cell type of some newborns with congenital leukemia.2