Acute Myelodysplasia with Myelofibrosis: a Report of Eight Cases

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<jats:p>S<jats:sc>ummary</jats:sc>. Eight patients with acute myelodysplasia and myelofibrosis are described. Four cases were secondary to long‐term therapy with cytotoxic agents and four were idiopathic. All cases presented with an abrupt onset of the illness, absence of organomegaly and severe pancytopenia. Bone marrow aspirate yielded adequate material in four cases and showed myelodysplasic features. Study of histological sections indicated that the bone marrow was cellular in every case, including numerous dystrophic megakaryocytes, erythroblasts, immature cells of the granulocytic series and blast cells which were difficult to identify. The reticulin network was always increased. In each case the disease was rapidly fatal. No improvement was noted with chemotherapy. In three cases an overt leukaemia developed with marked pleomorphism of blast cells. The nosology of this syndrome is discussed.</jats:p>

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