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Washington University Experience | NEOPLASM (SELLAR) | TTF-1-positive sellar tumor - Spindle cell oncocytoma (SCO) | 4E1 Spindle Cell Oncocytoma (Case 4) EM 010 - Copy

4E1-4 Ultrastructural examination of the neoplasm recapitulates the histological morphological features and additionally reveals abundant mitochondria within tumor cells. There is an admixture of clear and dark cytoplasm containing tumor cells. (electron micrographs)

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