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Washington University Experience | NEOPLASMS (METASTASES) | Microscopic | 14D2 Metastasis, frontal bone, medullary thyroid origin (Case 14) Calcitonin 40X
Higher magnification of image #14D1. (Calcitonin IHC) ---- Not shown:, There is patchy polyclonal CEA and chromogranin immunoreactivity; and no reactivity for TTF-1 and thyroglobulin in the tumor cells.
