“…Recently, acute myelogenous leukaemia secondary to treatment of various diseases has drawn the attention of many oncologists and haematologists (Videbaek 1973, Canellos et al 1975, Rosner 1976, Preisler & Lyman 1977, Auclerc et al 1978. Cases have been most often reported in multiple myeloma (Andersen & Videbaek 1970, Kyle et al 1970, Rosner & Grunwald 1974, Kyle et al 1975 Hodgkin's disease (Steinberg et al 1970, Zwaan & Speck 1973, Rosner & Grunwald 1975, Cadman et al 1977, Coleman et al 1977 breast cancer (Rosner et al 1978), ovarian carcinoma (Reimer et al 1977, Kapadia & Krause 1978 and in non-malignant diseases receiving immunosuppressive therapy (Silvergleid & Schrier 1974, Tulliez et al 1974, Tchernia et al 1976, Grunwald & Rosner 1979. Although some authors have reported a period of pancytopenia during the preleukaemic phase, (Weiden et al 1973, Kapadia & Krause 1978, only a few documented the haematological changes before the development of acute leukaemia.…”