Pediatric imaging of neuroblastoma-From classic to atypical

Neuroblastoma (NB) is the most common extracranial solid tumour in children, accounting for approximately eight percent of paediatric cancer and fifteen percent of pediatric cancer deaths. Reaching a correct and timely diagnosis is extremely important, especially in aggressive NB. Prognosis and treatment are based on tumour biology and genetics, patient age and perhaps most importantly, disease stage. The current staging system relies heavily on imaging, and this pictorial essay provides a description of the radiological features of NB, from classic to atypical, and the modalities used to help confirm the diagnosis and staging of NB. Our aim is to provide radiologists with a comprehensive collection of presentations of NB, to help improve diagnostic accuracy and decrease time to diagnose.