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Microscopic review of both excisional biopsy and surgical resection showed similar histologic features comprised of myriad tissue types including bone, cartilage, and marrow elements (a); neuroglial tissue (b) with conspicuous, mature neurons (star), skin with surrounding supporting sebaceous glands (c); and respiratory tract epithelium admixed with serous and mucous glands (d). (a–d) Stained with hematoxylin and eosin and captured at 100x.
