Acute Myeloid Leukemia (AML) – This is a type of cancer that starts in the blood-forming cells of the bone marrow. It progresses rapidly, leading to the accumulation of immature white blood cells called myeloblasts. These cells crowd out normal cells, causing symptoms like fatigue, infections, and easy bruising. AML can occur in different subtypes, each with unique characteristics. The disease can be in a state of complete remission (CR) or not in morphological CR but not rapidly progressing.
Myelodysplastic Syndromes (MDS) – These are a group of disorders caused by poorly formed or dysfunctional blood cells. The bone marrow does not produce enough healthy blood cells, leading to symptoms such as anemia, frequent infections, and bleeding. MDS can vary in severity and may progress to acute myeloid leukemia. The disease is characterized by the presence of dysplastic cells in the bone marrow. Over time, the condition can worsen, affecting the production of all types of blood cells.
Chronic Myeloid Leukemia (CML) – This is a cancer of the blood and bone marrow characterized by the overproduction of myeloid cells. It typically progresses through three phases: chronic phase (CP), accelerated phase (AP), and blast crisis. In the chronic phase, symptoms may be mild or absent, but as it progresses, symptoms like fatigue, weight loss, and an enlarged spleen can occur. The disease is associated with a specific genetic abnormality known as the Philadelphia chromosome. CML can remain stable for years before advancing to more aggressive phases.
Myeloproliferative Disorders (MPD) – These are a group of diseases where the bone marrow makes too many red blood cells, white blood cells, or platelets. The condition can lead to symptoms such as fatigue, headaches, and an increased risk of bleeding or clotting. MPD can progress slowly and may transform into acute leukemia. The disease is not in blast crisis, meaning it has not progressed to an aggressive phase. It can overlap with myelodysplastic syndromes, leading to complex clinical presentations.
Acute Lymphoblastic Leukemia (ALL) – This is a cancer of the blood and bone marrow that affects white blood cells called lymphocytes. It progresses rapidly, leading to the accumulation of immature lymphoblasts. Symptoms include fatigue, fever, bleeding, and bone pain. ALL can be in a state of complete remission (CR), where symptoms are reduced or absent. The disease primarily affects children but can also occur in adults.
Multiple Myeloma – This is a cancer of plasma cells, a type of white blood cell found in the bone marrow. It leads to the production of abnormal proteins that can cause kidney problems and weaken bones. Symptoms include bone pain, frequent infections, and anemia. The disease progresses by affecting multiple areas of the body, particularly the bones. Over time, it can lead to significant complications affecting overall health.
Chronic Lymphocytic Leukemia (CLL) – This is a type of cancer that affects the blood and bone marrow, characterized by the accumulation of abnormal lymphocytes. It progresses slowly and may not cause symptoms for years. As it advances, symptoms such as swollen lymph nodes, fatigue, and weight loss can occur. CLL primarily affects older adults and is the most common type of leukemia in this age group. The disease can lead to complications like infections and anemia.
Non-Hodgkin’s Lymphoma (NHL) – This is a group of blood cancers that develop in the lymphatic system. It can be aggressive or slow-growing, affecting lymph nodes and other organs. Symptoms include swollen lymph nodes, fever, night sweats, and weight loss. Aggressive NHL should have chemosensitive disease, meaning it responds to chemotherapy. The disease can vary widely in its presentation and progression.
Hodgkin’s Disease – This is a type of lymphoma characterized by the presence of Reed-Sternberg cells. It typically starts in the lymph nodes and can spread to other parts of the body. Symptoms include painless swelling of lymph nodes, fever, night sweats, and weight loss. The disease can be chemosensitive or respond to checkpoint inhibitors, which help the immune system fight cancer. Hodgkin’s disease is more common in young adults and has a distinct pattern of progression.
Belgium 
