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Histologic findings of the tumor resected. A: H&E staining. Detail of an encapsulated proliferation, surrounded by lymphoid tissue. It is made up of spindle cells forming irregular bundles and, focally, fence disposing nucleii mixed together with hipo or acellular collagen tissue. B: Inmunohistochemical findings. Inmunostainig showed intense positivity for S-100 (schwann cells).
