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Figure 1. A 24-year-old man presented with headaches, polyuria, and a tumor in the region of the optic chiasm. An open biopsy was nondiagnostic, and he was treated empirically with radiation therapy for a presumed astrocytoma or germ-cell tumor of the central nervous system. Fourteen months later, he had pain in the neck and left arm and was found to have an intradural mass at the level of T5 on contrast-enhanced magnetic resonance imaging. Surgical exploration revealed a metastasis in the subarachnoid space, which proved to be from a yolk-sac tumor with a reticular pattern. The tumor was strongly . . . [Full Text of this Article] |
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