Neurofibromatosis Type 2

These images demonstrate bilateral small enhancing masses in the internal auditory canals compatible with vestibular schwannomas, a characteristic feature of Neurofibromatosis Type 2. In addition, there are enhancing masses in the right Meckel’s cave and left Cavernous sinus, both of which are likely additional schwannomas. In the spine, we see a cystic faintly enhancing lesion near the conus which most likely represents an ependymoma. NF-2 is also known as MISME or multiple inherited schwannomas, meningiomas, and ependymomas. The differential for isolated bilateral masses of the IACs should include metastasis in patient with a history of cancer or granulomatous diseases such as Sarcoidosis.
DB NMR 13

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