NCCN Guidelines for Patients® | Myeloproliferative Neoplasms
65 NCCN Guidelines for Patients ® : Myeloproliferative Neoplasms, 2018 Dictionary medical history All health events and medications taken to date. megakaryocyte A bone marrow cell that makes platelets. magnetic resonance imaging (MRI) A test that uses a magnetic field and radio waves to make pictures of the insides of the body. mutation An abnormal change in the instructions within cells for making and controlling cells. myelodysplastic neoplasm (MDS) A cancer of blood-forming cells that causes too few blood cells to form. myeloproliferative neoplasm (MPN) A cancer of blood-forming cells that causes too many blood cells to form. no response Test results show no meaningful change in cancer status after treatment. observation A period of testing for changes in cancer status. partial response Test results still show signs of cancer but also improvement after treatment. pathologist A doctor who’s an expert in testing cells and tissue to find disease. phlebotomy Withdrawal of blood. physical exam A review of the body by a health expert for signs of disease. platelet A type of blood cell that helps control bleeding. Also called thrombocyte. plateletpheresis A procedure that withdraws blood, removes platelets, and then returns your altered blood to your body. platelet transfusion A slow injection of platelets into a vein. polycythemia vera Cancer of blood-forming cells that causes too many red blood cells. prognosis The pattern and outcome of a disease. post-ET myelofibrosis Advanced essential thrombocythemia with scarring in the bone marrow. post-PV myelofibrosis Advanced polycythemia vera with scarring in the bone marrow. primary myelofibrosis (PMF) Scarring of the bone marrow not due to other bone marrow problems. progression The course of a disease as it grows, gets worse, or spreads in the body. red blood cell A type of blood cell that carries oxygen from the lungs to the rest of the body. red blood cell transfusion A slow injection of red blood cells into a vein. relapse The return or worsening of cancer after a period of improvement. side effect An unhealthy or unpleasant physical or emotional condition caused by treatment. spleen A small organ to the left of your stomach that is part of the immune system. supportive care Treatment for the symptoms or health conditions caused by cancer or cancer treatment . white blood cell A type of blood cell that helps fight infections in the body.