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Abstract
Second malignancies after autologous haematopoietic stem-cell transplantation (AHSCT) are well-known long-term complications.
We present a case of a 24-year-old male with relapsed Hodgkin lymphoma (HL) with no involvement of his bone marrow who underwent AHSCT. Four years later he developed mild anaemia and a computed tomography showed an enlarged spleen. As his anaemia worsened, a bone marrow was performed. There was no evidence of HL but intense reticular and collagen fibrosis with hypocellularity was detected. Cytogenetic studies could not obtain cells in metaphase in two occasions. PCR for V617F JAK2 mutation was positive. Until now, with 7 years of follow up from his diagnosis of myelofibrosis with myeloid metaplasia (MMM) he did not require specific treatment besides from red cell transfusions when anaemia worsened during a pneumocistis carinii infection.
We present this case, because MMM is a infrequent second neoplasm after AHSCT. Revising the literature we could not find any case like this reported previously.