Distant metastasis of hepatocellular carcinoma to Meckel’s cave and cranial nerves: A case report and review of literature

Figure 1 Imaging findings and histopathological findings. A: Ethoxybenzyl magnetic resonance imaging (MRI), hypervascular hepatocellular carcinoma (HCC) in the right and left lobes; B: Brain MRI [T2-weighted image (T2WI)], no findings in the cavernous sinus or Meckel’s cave; C: Brain MRI [T1-weighted image (T1WI)], intact findings of bone marrow in the petrous bone; D: Brain MRI (T2WI), low intensity mass in the right Meckel’s cave (arrow); E: Brain MRI (T1WI), loss of normal fatty bone marrow signal intensity in the right petrous bone (or apex); F: Brain MRI (T2WI), low intensity mass around the right cavernous node, the right Meckel's cave, and the right petrous bone on T2WI; G: Histopathological finding (hematoxylin and eosin staining), moderately differentiated HCC; H: Contrast enhanced MRI, well-defined mass with abnormal enhancement in the right cavernous sinus, and the right Meckel’s cave (arrow). L: left; R: Right.