Although intracranial dural metastasis of Ewing's sarcoma is a very rare finding, its imaging characteristics are similar to those of its primary form in the central nervous system. Thus, this tumor must be considered in the differential diagnosis of extra-axial dural masses.
Adult ; Dura Mater/*pathology ; Female ; Humans ; Magnetic Resonance Imaging ; Sarcoma, Ewing's/diagnosis/*pathology/surgery ; Skull Neoplasms/diagnosis/*secondary/surgery ; Spinal Neoplasms/diagnosis/pathology/surgery ; Tomography, X-Ray Computed

The cavernous sinus of skull base is a extremely rare metastastatic site for hepatocellular carcinoma (HCC). A 51-year-old man was diagnosed with HCC by liver biopsy and palliative radiotherapy on HCC including main portal vein was performed. One month later, he was admitted due to sudden onset ptosis. Neurologic findings were normal except for abnormal movement of right eye, and it raised the possibility of abnormality in the right occulomotor, trochlear and the abducens nerves. Contrast-enhanced CT scan of brain showed a mass with homogeneous enhancement involving the right cavernous sinus. T2-weighted axial MR images demonstrated a homogeneous mass with intermediate signal intensity, and contrast-enhanced axial T1-weighted MR images demonstrated a mass with homogeneous enhancement in the right cavernous sinus. We describe a case of HCC metastasis to the cavernous sinus with symptoms of ptosis and disturbance of right eyeball movement.
Blepharoptosis/*etiology/pathology ; Carcinoma, Hepatocellular/complications/*diagnosis/*secondary ; Cavernous Sinus/*pathology ; Humans ; Liver Neoplasms/complications/*pathology ; Male ; Middle Aged ; Ophthalmoplegia/pathology ; Skull Base Neoplasms/diagnosis/*secondary ; Tomography, X-Ray Computed

Facial nerve palsy due to temporal bone metastasis of hepatocellular carcinoma (HCC) has rarely been reported. We experienced a rare case of temporal bone metastasis of HCC that initially presented as facial nerve palsy and was diagnosed by surgical biopsy. This patient also discovered for the first time that he had chronic hepatitis B and C infections due to this facial nerve palsy. Radiation therapy greatly relieved the facial pain and facial nerve palsy. This report suggests that hepatologists should consider metastatic HCC as a rare but possible cause of new-onset cranial neuropathy in patients with chronic viral hepatitis.
Carcinoma, Hepatocellular/complications/*pathology ; Facial Nerve Diseases/diagnosis/etiology ; Facial Pain/etiology ; Facial Paralysis/diagnosis/etiology ; Hepatitis B, Chronic/diagnosis ; Hepatitis C, Chronic/diagnosis ; Humans ; Immunohistochemistry ; Liver Neoplasms/complications/*pathology ; Magnetic Resonance Imaging ; Male ; Middle Aged ; Positron-Emission Tomography ; Skull Neoplasms/*diagnosis/pathology/secondary ; Tomography, X-Ray Computed