Publications by authors named "Sae Utsumi"

Background: Posterior reversible encephalopathy syndrome (PRES) is known as a transfusion-related complication with typically favorable prognosis and no report fatalities. Pathological evaluation of PRES is also scarce.

Case Report: An 88-year-old female with myelodysplastic syndromes (MDS) attended our hospital because of a compression fracture and chronic heart failure with chronic anemia.

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  • * Congenital thrombotic thrombocytopenic purpura (cTTP) was suspected, prompting tests for ADAMTS13 activity, which revealed severely decreased activity but no inhibitors present.
  • * The combination of test results and genetic testing in her family confirmed a diagnosis of cTTP, highlighting the need for careful evaluation of ITP patients for potential cTTP during follow-up.
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  • * Initial tests for leukemia-related chimeric genes were negative, but karyotyping revealed an inversion in chromosome 16, which led to further analysis confirming the CBFB::MYH11 fusion gene through advanced techniques like FISH and RNA sequencing.
  • * This case demonstrates a rare subtype of the CBFB::MYH11 fusion gene that can result in false-negative findings with standard screening, highlighting the importance of using modified PCR primers, FISH, and RNA sequencing for accurate diagnosis.
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Hematologic diseases frequently affect people >60 years old, and allogeneic stem cell transplantation (allo-SCT) is a potentially curative treatment for these patients. Although several multicenter studies proposed the risk assessment of allo-SCT for the elderly, they receive different treatments and management at each facility. Therefore, accumulating data from institutions that exhibit relatively the same treatment policy and patient care is important.

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Donor-derived hematological malignancies have been recognized as rare but serious late complications in allogeneic hematopoietic stem cell transplantation (allo-HSCT) recipients. Most cases in the literature were diagnosed as myelodysplastic syndrome or acute leukemia, with very few malignant lymphoma reported. We herein present another case of donor-derived Burkitt lymphoma that occurred 9 years after allo-HSCT under continued administration of immunosuppressants for chronic graft-versus-host disease (GVHD).

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