- Bone marrow diseases are a category of conditions in which there is a problem with the bone marrow inside bones normally producing or developing blood cells; it is not a single disease name but includes various causes and types.
- Related factors include genetic and environmental factors, and some diseases, such as leukemia and lymphoma, can occur when abnormal cells arise in or spread to the bone marrow.
- If the hematopoietic stem cells in the bone marrow and their development process are damaged or become dysregulated, the production of red blood cells, white blood cells, and platelets may decrease or increase abnormally.
- Representative categories include leukemia, aplastic anemia, myeloproliferative neoplasms, and lymphoma accompanied by bone marrow involvement.
- Risk and prognosis can vary depending on the cause, age, genetic background, past exposure to chemotherapy or radiation, comorbidities, and the affected blood cell lineages.
- Symptoms may manifest as fatigue and dyspnea due to anemia, susceptibility to infection due to white blood cell abnormalities, and bruising or bleeding due to thrombocytopenia, and may also be discovered as asymptomatic depending on the disease.
- Diagnosis is conducted within a broad framework based on medical history and physical examination, performing blood tests and bone marrow examinations if necessary, and adding cell morphology, chromosomal, and molecular testing depending on the results.
- A specific bone marrow disease cannot be confirmed by blood cell counts alone; differential causes such as infection, medication, nutritional deficiency, and other blood disorders, as well as the timing of the test, must be interpreted together.
- Management is planned by evaluating the type and severity of the disease, the degree of cytopenia or cytosis, and the risk of complications, then combining observation, supportive care, drug therapy, and transplantation.
- Treatment options vary by disease and may include drugs, transfusions, and hematopoietic stem cell transplantation, but this material alone cannot be used to determine that a specific treatment is the standard for all bone marrow diseases.