The term that best describes bone marrow infiltration by malignant tumors is:

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The term that best describes bone marrow infiltration by malignant tumors is myelophthisic. This means that the malignant tumor is replacing the normal bone marrow cells, leading to bone marrow failure and eventually causing cytopenias such as anemia, thrombocytopenia, and leukopenia. Myelofibrosis, myelodysplasia, and myeloproliferative disorders can also involve the bone marrow, but they have distinct pathological features and clinical characteristics. Hyperproliferative is not a commonly used term in relation to bone marrow infiltration by malignant tumors.

The Term That Best Describes Bone Marrow Infiltration by Malignant