Demographics:
42 years old, Male
Indication:
Followup, prior left frontal tumor resection
Findings
- Extensive plaque-like dural thickening and enhancement with multiple intermixed discrete dural-based masses
- Enhancing lesions in the bilateral internal auditory canals, larger on the right
- Amorphous enhancing lesion along the posterior intraorbital left optic nerve near the orbital apex
- Enhancing soft tissue in the left Meckel's cave extending into the left foramen ovale
- Partially imaged enhancing lesions involving the upper cervical spinal cord
- Prior high left frontoparietal craniotomy with subjacent encephalomalacia in the posterior aspect of the left superior frontal gyrus
- Additional small area of encephalomalacia in the posterior left frontal periventricular white matter with central susceptibility artifact
- The cerebellar tonsils extend up to 8 mm inferior to the foramen magnum with associated mild crowding of the cervicomedullary junction
- Empty, expanded appearance of the sella
- Asymmetric atrophy of the right muscles of mastication
Diagnosis
Meningiomatosis, schwannomas, and ependymomas in neurofibromatosis type 2
Key Imaging Features
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Differential Diagnosis
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Discussion
Pearls
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