Acute myeloid leukaemia in one of identical twins

Abstract

A case of acute myeloid leukaemia is described in one of identical twins. It is pointed out that this case raises certain clear cut issues that can be best met by the assumption that her condition arose as a result of the actioin of some external factor, specific, but of low infectivity. An analysis of t-he cases of leukaemia admitted into the Royal Victoria Infirmary over the past five years yielded information that tended to support such an assumption.