INTRACRANIAL MENINGEAL MELANOCYTOMA - A REPORT OF 2 CASES AND A REVIEW OF THE LITERATURE

Two rare cases of intracranial meningeal melanocytoma are reported wit h clinical, radiologic, and pathologic findings. In one of these the d iagnosis was established by ultrastructural studies that showed premel anosomes and melanosomes in nonarachnoid-derived tumor cells. The othe r case was diagnosed retrospectively after a very long survival and is still alive 35 years after total excision and radiotherapy. The occur rence of these tumors in the cerebellopontine angle is rare as seen in our case.