Imaging plays a key role in the diagnosis and staging of prenatal and neonatal tumors, and
is essential in treatment planning. Though obstetrical ultrasound is the first choice prenatally, fetal
MRI continues to play an increasing role as experience with this imaging modality increases. In the
neonate, in addition to ultrasound and MRI, CT and nuclear medicine studies can also play an important
role. We describe the prenatal and neonatal imaging findings of some of the most common congenital
abdominal and soft tissue neoplasms including neuroblastoma, renal, liver and soft tissue tumors.