Article Figures & Data
Figures
- Fig 1.
Three different patterns of straight sinus (arrowheads) with persistent falcine sinus. A, First, an absent straight sinus. In addition, the persistent falcine sinus is duplicated. B, Second, a rudimentary straight sinus, which is smaller than the internal cerebral veins. C, Third, a normal straight sinus.
- Fig 2.
A 56-year-old woman underwent CTA for cerebrovascular disease screening. The inferior sagittal sinus (arrows) drains directly into the persistent falcine sinus (arrow), without confluence with the internal cerebral veins.
Tables
Demographics and anatomic characteristics of falcine sinuses
Case No. Age (yr) Sex Straight Sinus Congenital Anomaly Sinus Occlusion SSS Other Brain Imaging Cause of CTA Remark 1 37 M Absent No No Normal Screening Duplication 2 40 M Absent No No Normal MR imaging, DSA SAH 3 78 F Absent No No Normal F/U aneurysm 4 39 M Rudimentary No No Normal Headache Duplication 5 49 F Rudimentary No No Normal Screening 6 54 F Rudimentary No No Normal ICH 7 61 F Rudimentary No No Normal Screening Duplication 8 77 M Rudimentary No No Normal ICH 9 20 F Normal Dysplastic tentorium, malposition of SSS No Normal MR imaging, DSA Abnormality on brain MR imaging 10 43 F Normal No No Normal Screening Duplication 11 52 M Normal No No Normal Headache 12 56 F Normal No No Normal Screening Direct drainage of ISS
