What types of tumors are found in the bone marrow?
Tumors of the blood cells found within the marrow are rare, with a continuum from dysplasias (abnormal growths) to cancers (myeloproliferative disease). Malignant tumors of the blood vessels within the marrow (hemangiosarcomas) are relatively common in dogs although the clinical disease usually shows elsewhere first. Cancer of the lymphocytes or mast cells may involve the bone marrow. Cancers of various types from other organs may spread (metastasize) to the bone marrow.
