Lymphoid neoplasms: Lymphoid neoplasms primarily involve the lymphatic system, which includes lymph nodes, spleen, thymus, and bone marrow. It is the abnormal growth and proliferation of lymphocytes. Lymphoid neoplasms can be broadly categorized into two main groups: Hodgkin lymphoma (HL) : HL is characterized by the presence of Reed-Sternberg cells, which are large, abnormal cells derived from B cells. ( Non-Hodgkin lymphoma (NHL) : NHL encompasses a diverse group of lymphoid malignancies that can arise from B cells, T cells, or natural killer (NK) cells. Myeloid neoplasms These are a group of disorders characterized by abnormal growth and development of cells in the myeloid lineage, which includes granulocytes, monocytes erythrocytes, platelets, etc. Myeloid neoplasms can be broadly classified into two main categories: Myeloproliferative neoplasms (MPNs) : MPNs are characterized by the neoplastic proliferation of multipotent myeloid stem cells in the bon...