disease arises from structure disease arises from alteration in structure hematopoietic cell hematopoietic and lymphoid system neoplasm neoplasm hematopoietic and lymphoid cell neoplasm UMLS:C0376544 hematologic malignancy malignant hematopoietic neoplasm haematopoietic malignancy, NOS MONDO:0044881 malignant haematopoietic neoplasm haematopoietic cell tumour haematopoietic tumour hematologic neoplasm hematological tumor hematopoietic malignancy, NOS hematopoietic cell tumor hematopoietic, Including myeloma hematopoietic neoplasm hematopoietic tumor hematopoietic neoplasms including lymphomas haematopoietic cancer haematopoietic neoplasm hematopoietic and lymphoid neoplasms hematopoietic cancer haematological neoplasm A neoplasm arising from hematopoietic cells found in the bone marrow, peripheral blood, lymph nodes and spleen (organs of the hematopoietic system). Hematopoietic cell neoplasms can also involve other anatomic sites (e.g. central nervous system, gastrointestinal tract), either by metastasis, direct tumor infiltration, or neoplastic transformation of extranodal lymphoid tissues. The commonest forms are the various types of leukemia, Hodgkin and non-Hodgkin lymphomas, myeloproliferative neoplasms, and myelodysplastic syndromes. hematologic cancer NCIT:C27134 haematopoietic and lymphoid neoplasms haematopoietic neoplasms including lymphomas GARD:0025916 malignant hematologic neoplasm HEMOLYMPHORETICULAR tumor, malignant haematological tumour hematopoietic and lymphoid cell neoplasm hematological neoplasm MEDGEN:91264