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Washington University Experience | NEOPLASMS (METASTASES) | Melanoma | 8A2 Metastasis, melanoma (Case 8) H&E 7
The tumor is composed of sheets of epithelioid cells involving the leptomeninges and subarachnoid space that diffusely infiltrate into the underlying brain tissue as small nests and single cells. Astrocytosis is seen in the adjacent brain. (H&E)