Brief description of typical imaging findings in hepatoblastoma. From From Merrow AC Jr. Diagnostic Imaging: Pediatrics. 3rd ed. Elsevier; 2017.

1. Hepatoblastoma
Imaging findings

2. malignant
< 4 years
high AFP

3. usually > 10 cm, well-defined
heterogeneous
hemorrhage, necrosis, cysts
Ca++ in 50% of cases
fibrous septae
 spoke wheel on US, hypo on T2
hypoenhancing
compared to liver on all phases

4. displaces rather than invades vessels or adjacent structures
tumor thrombus – enhancing thrombus dilates vessel
CT to evaluate for pulmonary metastases

5. Remember
large heterogeneous hypovascular mass
with high AFP in < 4 years age