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  "description" : [ "Post-transplant lymphoproliferative disorder (PTLD) is a polyclonal (benign) or clonal (malignant) proliferation of lymphoid cells that develops as a consequence of immunosuppression in a recipient of a solid organ or bone marrow allograft. PTLDs comprise a spectrum ranging from early, Epstein-Barr virus (EBV)-driven polyclonal lymphoid proliferations to EBV-positive or EBV- negative lymphomas of predominantly B-cell or less often T-cell type. (WHO, 2001)" ],
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    "ALT_DEFINITION" : [ "A condition in which a group of B-cells grow out of control after an organ transplant in patients with weakened immune systems. This usually happens if the patient has also been infected with Epstein-Barr virus. Post-transplant lymphoproliferative disorder may progress to non-Hodgkin lymphoma.", "Abnormal proliferation of B lymphocytes as a complication of immunosuppression occurring after solid organ or allogenic stem cell transplantation." ],
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    "Display_Name" : [ "Post-Transplant Lymphoproliferative Disorder" ],
    "ICD-O-3_Code" : [ "9971/1" ],
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    "UMLS_CUI" : [ "C0432487" ],
    "code" : [ "C4727" ]
  },
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