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Fig. 1 | BMC Neurology

Fig. 1

From: A case report on recurrent alternating Tolosa-Hunt syndrome due to bacterial sphenoid sinusitis: rediscussing the diagnostic terminology and classification

Fig. 1

a Contrast-enhanced coronal T1 MRI of the first headache attack (left headache) on December 12, 2020. The left cavernous sinus was enlarged and widened. The abnormal tissue was strongly enhanced after the intravenous injection of the contrast material. b Contrast-enhanced coronal T1 MRI of the second headache attack (right headache) on January 10, 2021. The increased soft tissue shadows were present in the bilateral cavernous sinuses and were more pronounced on the right. c Axial sinus CT on January 14, 2021 shows inflammation of the right sphenoid sinus cavity. d One month after surgical and antibiotic therapy, MRI showed that the signal shadow of the cavernous sinus was less than before, although inflammation was still observed in the right. e-f: Two months after treatment, MRI showed a normal cavernous sinus and sphenoid sinus

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