case_images: PMC7306509_01
case_images: MRI of the brain; (A-D) Coronal and axial steady state sequences / FIESTA. (E) Coronal T2 weighted images / T2WI with fat suppression. (F) Axial T1WI post contrast. (G) Sagittal T1WI. (A-F) The images demonstrate bilateral, lytic, expansile, lobular lesions extending from Meckel's caves into the petrous apices. These lesions follow CSF signal on all sequences with no enhancement. (G) An associated empty sella is noted.
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case_images: PMC7306509_01_gr1.jpg
case_images: fig0005
case_images: The brain MRI showed CSF-containing lesions with no enhancement in the petrous apices bilaterally, communicating with Meckel's cave (Fig. 1).
case_images: Nonenhanced CT brain; (A-B) Coronal brain window. (C-F) Coronal and axial bone window. (A-F) There are bilateral, well-defined, lytic, expansile, fluid-containing lesions in the petrous apices with bone dehiscence of the inner cortex of the petrous bone.
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case_images: PMC7306509_01_gr2.jpg
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case_images: The non-enhanced CT scan of the brain revealed bilateral osteolytic bony lesions in the petrous apices with fluid density (Fig. 2).