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. 2022 Feb 4;17(4):1220–1224. doi: 10.1016/j.radcr.2021.12.046

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MRI of brain sequence T1WI axial plane results: large well-demarcated, lobulated heterogeneous expansile mass within the left petrous apex. The lesion is overall hyperintense on T1WI (due to cholesterol component) MRI of brain sequence T1WI axial plane results: Additionally, mass extends into the sphenoid sinus anteriorly, and shows a large mass effect over the pons and on the left cerebellum. No sign of hydrocephalus.
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MRI of brain sequence Sagittal T1WI plane results: large well-demarcated, lobulated heterogenous expansile mass within the left petrous apex. The lesion is overall hyperintense on T1WI (due to cholesterol component). Additionally, mass extends into the sphenoid sinus anteriorly, and invades the left cerebellopontine cistern on the left and shows a large mass effect over the pons and on the left cerebellum. It is separate from the inner ear structures and middle ear cavity. No sign of hydrocephalus. MRI of brain sequence FLAIR axial plane results:
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Hemo MRI of brain sequence T1WI axial plane post contrast results:
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MRI of brain sequence Coronal T1WI post Gd plane results. MRI of brain sequence Sagittal T1WI post Gd plane results.