PMC5823696_01
Histologic specimen of trigeminal nerve stained with hematoxylin and eosin at 10x magnification. Arrow delineates normal cranial nerve, with inner foci of tumor. The immunostains on the specimen showed that it was positive for OSCAR, pankeratin, CD8/18, ER (estrogen receptors), and PR (progesterone receptors). The immunochemical and focal histological findings were similar to that seen in the previous uterine specimen.
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The nerve was transected at the pons ( Fig. 1 ) and tumor removal proceeded anteriorly to the posterior maxillary sinus.
Axial magnetic resonance imaging at level of right trigeminal root on presentation (left) and after resection (right).
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Postoperative films confirmed significant tumor debulking ( Figs. 2 and 3 ), with evidence of intended residual at the right cavernous sinus.
Coronal magnetic resonance imaging at root of zygoma on presentation (left) and after resection (right).
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Postoperative films confirmed significant tumor debulking ( Figs. 2 and 3 ), with evidence of intended residual at the right cavernous sinus.