Figure 12a. Regenerative hepatic nodules in a 10-year-old boy 8 years after bone marrow transplantation for neuroblastoma. (a) CT image shows multiple enhancing hepatic nodules that had grown slowly over several years. (b) T1-weighted MR image shows the nodules as round areas of signal hypointensity compared with the signal intensity of the normal hepatic parenchyma. (c) Contrast-enhanced arterial phase MR image shows avid enhancement of the nodules in comparison with the normal hepatic parenchyma.