case_images: PMC5613268_01
case_images: (A) Axial T1-weighted image shows hypointense, lobulated contour lesion (arrow) within the confluens sinuum; (B) Axial T2-weighted image demonstrates lesion is hyperintense relative to brain parenchyma.
case_images: NCI-4-185-g001.jpg
case_images: PMC5613268_01_NCI-4-185-g001.jpg
case_images: F1
case_images: T1-weighted image (WI), hyperintense relative to the brain on T2-WI (Figure 1), with banded lower signal, most likely representing collagenous connective tissue and complete suppression on fluid-attenuated inversion recovery sequences. The lesion had caused a scallop-shaped area of erosion in the neighboring occipital bone (Figure 2).
case_images: Sagittal T2-weighted image indicates hyperintense lesion (arrow) extending from confluens sinuum through the superior sagittal sinus and scallop-shaped area of erosion in the neighboring bone.
case_images: NCI-4-185-g002.jpg
case_images: PMC5613268_01_NCI-4-185-g002.jpg
case_images: F2
case_images: T1-weighted image (WI), hyperintense relative to the brain on T2-WI (Figure 1), with banded lower signal, most likely representing collagenous connective tissue and complete suppression on fluid-attenuated inversion recovery sequences. The lesion had caused a scallop-shaped area of erosion in the neighboring occipital bone (Figure 2).
case_images: Sagittal magnetic resonance venography maximum intensity projection image revealing obvious venous flow, which divided into 2 channels around filling defect (arachnoid granulation), and joined distally.
case_images: NCI-4-185-g003.jpg
case_images: PMC5613268_01_NCI-4-185-g003.jpg
case_images: F3
case_images: It was observed that there was maintained venous flow around the lesion (Figure 3).