Myelodysplastic Syndrome
Myelodysplastic Syndrome (MDS) / Myelodysplastic Neoplasms: A Comprehensive Medical Overview Introduction Myelodysplastic syndromes (MDS) , now referred to by the World Health Organization (WHO) 2022 classification as myelodysplastic neoplasms , are a group of clonal hematologic malignancies affecting the bone marrow and blood . In MDS, immature blood cells (hematopoietic stem cells) in the bone marrow do not mature properly and fail to produce enough healthy red cells, white cells, or platelets. This ineffective hematopoiesis leads to blood cytopenias , marrow dysplasia, and in some cases, progression to acute myeloid leukemia (AML) . Understanding the Basics: Normal vs. Abnormal Blood Formation In a healthy individual , the bone marrow continuously produces: Red blood cells (carry oxygen) White blood cells (fight infection) Platelets (help blood clot) This production process begins with blood stem cells , which mature through tightly controlled pathways. In MDS, gen...