Figure 1

Axial pre- and post-contrast T1-weighted magnetic resonance images. The pre-contrast T1-weighted image demonstrates an enlarged spleen with a small area of high signal in the periphery, suggestive of focal hemorrhage. Pre-contrast T1-weighted images also demonstrate three small hypointense hepatic lesions in both lobes of the liver, which show avid enhancement following administration of intravenous contrast. Bottom. Post-contrast T1-weighted images of the spleen demonstrate nearly complete replacement of the spleen by the tumor and by multiple areas of necrosis.