File:Neurofibromatosis type 2 (Radiopaedia 66211-75401 Axial T1 11).jpg

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Summary:

Description
  • Radiopaedia case ID: 66211
  • Image ID: 46417932
  • Image stack position: 11/26
  • Plane projection: Axial
  • Aux modality: T1
  • Modality: MRI
  • System: Oncology
  • Findings: Bilateral CPA soft tissue masses (larger on the left) of low signal intensity on T1WI, and isosignal intensity on T2WI and FLAIR, with intense and homogeneous enhancement, extending into an enlarged IAC bilaterally. A mass effect is noted on the middle cerebellar peduncles as well as the brainstem with low position of the cerebellar tonsils (7 mm below the foramen magnum). Extra-axial broad dural-based ovoid soft tissue mass of the posterior cerebral fossa of right paramedian location. It shows an isosignal centrally and low signal peripherally on T1WI, heterogeneous low signal on FLAIR, and central low signal with peripheral high signal on T2WI and T2*, with intense and relatively homogeneous enhancement of the central component. Enhancing soft tissue mass in the right jugular foramen, indicating schwannoma of the lower cranial nerves (IX, X, XI). Bilateral enhancing masses in the trigeminal cisterns (most likely trigeminal schwannomas). Extensive meningiomatosis with dural-based enhancing soft tissue masses along the tentorium cerebelli, falx cerebri, and cerebral convexities. Bilateral sphenoid wing dysplasia with temporal encephalocele extending downward to the infratemporal spaces, medial to the lateral pterygoid muscles. Left occipital subcutaneous lesion of low signal on T1WI and high signal on T2WI with intense and homogeneous enhancement following IV contrast. Small subcutaneous fluid collection along the course of the VP shunt at the left occipital region.
Date Published: 18th Feb 2019
Source https://radiopaedia.org/cases/neurofibromatosis-type-2-10
Author Dr Ammar Haouimi
Permission
(Permission-reusing-text)		 http://creativecommons.org/licenses/by-nc-sa/3.0/

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Attribution-NonCommercial-ShareAlike 3.0 Unported (CC BY-NC-SA 3.0)

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current13:23, 8 August 2021Thumbnail for version as of 13:23, 8 August 2021608 × 736 (194 KB)Fæ (talk | contribs)Radiopaedia project rID:66211 (thread B) (batch #25453-35 B11)

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