PMC5985255_01
A) Sagittal non-enhanced CT scan demonstrating a large sellar/suprasellar hyper-dense lesion with superior extension compressing the floor of the 3rd ventricle. B) Post-contrast image showing faint enhancement.
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However, ophthalmological examination revealed decreased visual acuity in the left eye, bitemporal homonymous hemianopsia, and bilateral 6th nerve palsy, and cranial CT showed a large sellar/suprasellar mass (Fig. 1).
A) Sagittal pre-contrast T1-weighted image showing an iso-dense signal in the gray matter. A bright spot in the neurohypophysis is preserved. B) Sagittal T2-weighted image showing heterogeneous intensity signals and multiple foci of signal voids. C) Post-gadolinium contrast T1-weighted image showing heterogeneous enhancement.
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The lesion compressed the brain parenchyma and suprasellar structures (Fig. 2).
A) Low-magnification image showing dilated blood vessels of varying sizes filled with red blood cells. B) High-magnification image showing thin-walled blood vessels separated by collagen. C) Glial fibrillary acidic protein staining was negative, indicating that no glial tissue was present in the section under examination. (For interpretation of the references to colour in this figure legend, the reader is referred to the web version of this article.)
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A subsequent histopathological examination confirmed the diagnosis of CCM (Fig. 3).