Acute myeloid leukaemia with myelodysplasia-related features

Fatigue manifests as a persistent feeling of tiredness and lack of energy. It is caused by anemia due to the insufficient production of healthy red blood cells. Over time, fatigue can worsen as the disease progresses and the body's ability to transport oxygen is further compromised. This affects daily life by reducing the ability to perform routine activities, and management includes blood transfusions and medications to stimulate red blood cell production.

Patients experience easy bruising and bleeding, such as frequent nosebleeds or bleeding gums. This occurs due to thrombocytopenia, a condition where there is a low platelet count, impairing the blood's ability to clot. As the disease progresses, the risk of significant bleeding increases, which can be life-threatening. Daily life is affected by the need to avoid activities that could cause injury, and treatment may involve platelet transfusions.

Frequent infections manifest as recurrent episodes of fever, cough, and other signs of infection. This is due to neutropenia, where there is a low count of neutrophils, a type of white blood cell crucial for fighting infections. Over time, the risk of severe infections increases as the immune system becomes more compromised. Patients may require antibiotics and growth factors to boost white blood cell production to manage this symptom.

Bone pain is experienced as a deep, aching sensation, often in the long bones of the arms and legs. It is caused by the expansion of the bone marrow due to the proliferation of abnormal cells. As the disease progresses, the pain may become more intense and frequent. This symptom can limit mobility and physical activity, and pain management strategies include analgesics and other supportive therapies.

Pallor is characterized by an unusual lightness of the skin color, often noticed in the face, palms, and nail beds. It results from anemia, where there is a reduced number of red blood cells to provide oxygen to the tissues. As the condition progresses, pallor becomes more pronounced. This can lead to self-consciousness and social withdrawal, and management involves treating the underlying anemia.

Shortness of breath is experienced as difficulty breathing or feeling breathless, especially during physical exertion. It is caused by anemia, which reduces the oxygen-carrying capacity of the blood. This symptom can worsen over time as anemia becomes more severe. It affects daily activities and exercise tolerance, and management includes treating the anemia and using supplemental oxygen if needed.

Fever presents as an elevated body temperature, often accompanied by chills and sweating. It can be caused by infections due to a weakened immune system or by the disease itself as the body reacts to abnormal cells. Over time, fever may become more frequent and persistent. It can lead to discomfort and fatigue, and management involves antipyretics and addressing any underlying infections.

Weight loss occurs as an unintended reduction in body weight, often accompanied by loss of appetite. It can result from the body's increased metabolic demands due to the disease and its effects on appetite and digestion. As the condition progresses, weight loss can become more pronounced and debilitating. This affects nutritional status and overall health, and management includes nutritional support and addressing any underlying causes.

The clinician looks for symptoms such as fatigue, fever, and easy bruising or bleeding. A detailed medical history is taken to identify any previous hematological disorders or exposure to cytotoxic agents. Physical examination may reveal pallor, petechiae, or signs of infection. This step helps determine the need for further diagnostic testing and shapes the initial clinical suspicion of leukemia.

Bone marrow imaging, such as MRI or CT, is used to assess marrow cellularity and detect any structural abnormalities. Specific abnormalities like marrow infiltration or fibrosis may be visible, supporting the diagnosis of leukemia. Imaging findings can confirm the presence of disease and exclude other conditions like aplastic anemia. These studies are crucial in assessing the extent of disease and planning further diagnostic steps.

Complete blood count and peripheral blood smear are ordered to evaluate white blood cell count, hemoglobin levels, and platelet count. Biomarkers such as blasts in the peripheral blood or dysplastic changes in blood cells are sought. Abnormal results typically show increased blasts and dysplasia, guiding the clinician towards a diagnosis of acute myeloid leukemia. These results prompt further testing, such as bone marrow biopsy, to confirm the diagnosis.

Genetic testing involves sequencing genes such as TP53, RUNX1, and ASXL1, which are commonly mutated in this condition. Mutations like chromosomal abnormalities or specific gene mutations are identified. These results confirm the diagnosis of myelodysplasia-related acute myeloid leukemia and provide prognostic information. Genetic findings are also crucial for family counseling and assessing hereditary risk.