What is the most common type of leukemia found in children?

Acute Lymphoblastic Leukemia (ALL) is identified as the most common type of leukemia in children, accounting for approximately 75-80% of pediatric leukemia cases. This condition primarily affects lymphoid cells, which are crucial components of the immune system. The peak incidence of ALL occurs between the ages of 2 and 5 years, making it a significant consideration in pediatric oncology.

The reason for its prevalence in children is not entirely understood, but various genetic and environmental factors are thought to contribute to the risk of developing ALL. The disease manifests rapidly and can lead to serious health complications; thus, early detection and intervention are crucial for improving outcomes.

In contrast, Chronic Lymphocytic Leukemia (CLL) is primarily an adult disease and rarely occurs in children. Acute Myeloid Leukemia (AML) does occur in children but is less common than ALL. Similarly, Chronic Myelogenous Leukemia (CML) is also more prevalent in adults. Thus, while ALL is the most frequently diagnosed type of leukemia in the pediatric population, the other types are generally associated with different age groups or have a lower incidence in children.