Abnormalities of tetrahydrobiopterin metabolism
Apr. 07, 2024
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Steroid-responsive cavernous sinus syndrome due to Rosai-Dorfman disease (MRI)
MRI findings in a man with a steroid-responsive cavernous sinus syndrome due to Rosai-Dorfman disease. There is an extra-axial nodule in the left cerebellopontine angle cistern with isosignal in T1 and low signal in T2/FLAIR with homogeneous contrast enhancement, surrounded by cerebellar edema, with dural tail and no restricted diffusion (A, B, to G). In H and I there is a small extra-axial image with the same characteristics described above in the right temporal region.
(Source: Nóbrega PR, Rodrigues PG, de Sousa Pereira I, et al. Steroid responsive cavernous sinus syndrome due to Rosai-Dorfman disease: beyond Tolosa-Hunt syndrome--a case report. BMC Neurol 2021;21[1]:264 Creative Commons Attribution 4.0 International [CC BY 4.0] license, creativecommons.org/licenses/by/4.0.)