Abdominal Imaging at Initial Diagnosis and Following Relapse in Children With Acute Lymphoblastic Leukaemia

Acute lymphoblastic leukaemia (ALL) is the most common paediatric malignancy and remains one of the most common causes of cancer-related death in children and adolescents. It is characterised by the proliferation of immature lymphoid cells capable of infiltrating bone marrow, blood and extramedullary sites. Five-year overall survival rates exceed 90% with current multidrug chemotherapeutic regimens. This manuscript reviews the abdominal imaging features of leukaemic infiltration in children with ALL at the time of initial diagnosis and following relapse.