PMC4769612_01
Enhanced-CT examination showing a mildly enhancing mass in the L-JF with (A) scalloped expansion of the JF (small arrows) with medial extension (large arrow) on bone windows; (B) extracranial extension in the carotid space; and (C) intracranial extension with involvement of the cerebellopontine angle (arrow).
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A contrast-computed tomography (CT) scan of her head was performed for further evaluation and revealed a scalloped expansion of the JF with a mildly enhancing soft tissue mass measuring 2.6 cm in diameter (Fig. 1A). The mass showed intracranial extension to the cerebellopontine angle and extracranial extension into the carotid space (Figs. 1B and C).
MRI examination showing (A) a dumbbell-shaped lesion with demonstration of "salt & pepper" appearance on coronal T2W imaging (arrow), and (B) an avidly contrast-enhancing mass in the JF with prominent central flow voids corresponding to a "pepper"-like appearance on axial-T1W imaging (arrow).
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T2W-imaging in the left JF (Fig. 2A), with involvement of the left internal auditory canal, hypoglossal canal, clivus, and cerebellopontine angle. This lesion demonstrated avid enhancement on postcontrast imaging (Fig. 2B).
Carotid angiography showing tumor blush (circle) supplied by a branch of the ascending pharyngeal artery (arrow).
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External carotid angiogram revealed angiographic tumor blush just distal to the origin of the ascending pharyngeal artery anteriorly at the left skull base with vascular supply from the ascending pharyngeal artery (Fig. 3).