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FIG 2. Case 2. Two-year-old male patient with diplopia and a decrease in left eye vision.
A, Axial T2-weighted image (3200/84/1) shows a hyperintense suprasellar mass encasing the anterior portion of the circle of Willis.
B, Axial T1-weighted image (433/16/2) shows a hypointense suprasellar mass encasing the circle of Willis.
C, Contrast-enhanced sagittal T1-weighted image (650/14/2) shows a solid-cystic enhancing hypothalamic-suprasellar mass.
D, Contrast-enhanced coronal view T1-weighted image (400/16/2).
E, Photomicrograph of hematoxylin and eosin-stained normal tanycytes (arrowheads) radiating to a blood vessel (arrows) in area postrema.
F, Photomicrograph of hematoxylin and eosin-stained neoplastic cells (arrowheads) radiating to blood vessel (arrows) in tanycytoma specimen.
G, Photomicrograph of electron microscopy of tumor specimen reveals tanycytes with long synaptic processes (red arrow) and synaptoid complexes (yellow arrow).
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