Giant Retroperitoneal Neuroblastoma in a Teenager Demonstrated by Split-Bolus MDCT

Neuroblastoma represents the most common extra cranial solid tumor among the childhood malignancies. It is rare in adolescents and very rare in adults. Neuroblastoma occurs most commonly in the abdomen, rather than in thorax. For the first time in literature, we have demonstrated the occurrence of a giant retroperitoneal Neuroblastoma in a 14-year-old young teen, by split-bolus Multidetector-Row Computer Tomography (MDCT). This innovative technique, based on the splitting in two boluses of the intravenous contrast medium, combines two phases in a single scan, with significant reduction of the radiation dose.