PMC4030550_01
Sagittal post contrast MRI demonstrating contrast enhancing infundibular mass
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F1
Repeat imaging revealed a sellar/suprasellar mass measuring 10 mm arising from the infundibulum with mass effect on the optic chiasm (Fig 1 and 2).
Coronal post contrast MRI demonstrating mass effect on chiasm
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F2
Repeat imaging revealed a sellar/suprasellar mass measuring 10 mm arising from the infundibulum with mass effect on the optic chiasm (Fig 1 and 2).
Intraoperative photo demonstrating round mass arising from and infiltrating the infundibulum with mass effect on the overlying optic apparatus. (RON = right optic nerve, LON = left optic nerve, RSHA = right superior hypophyseal artery, DIS = distal infundibular stalk, PG = pituitary gland).
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F3
After opening the arachnoid, a mass with extensive vasculature infiltrating the proximal aspect of the infundibulum with significant mass effect on the undersurface of the optic chiasm was visualized (Fig 3).
Postoperative sagittal post contrast MRI demonstrating complete resection and vascularized nasoseptal flap
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F4
Postoperative imaging confirmed complete resection (Fig 4 and 5).
Postoperative coronal post contrast MRI demonstrasting removal of chiasmatic mass effect
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F5
Postoperative imaging confirmed complete resection (Fig 4 and 5).
H&E slide (a) demonstrating closely arranged polygonal cells with bland, round to oval nuclei, surrounded by copious amounts of granular eosinophilic cytoplasm. PAS stain (b) highlighting cytoplasmic granules.
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F6
Microscopic examination demonstrated closely arranged polygonal cells with bland, round to oval nuclei, surrounded by copious amounts of granular eosinophilic cytoplasm (Fig 6a). The tumor cells demonstrated positivity for PAS which was resistant to diastase digestion (Fig 6b).