Presentation
Incidental finding on brain MRI.
Patient Data
Age: 50 years
Gender: Female
From the case:
Occipital sinus
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Right occipital sinus best seen on postcontrast axial and sagittal T1 MIP sequences, draining into the ipsilateral internal jugular vein.
Normal appearance of the transverse and sigmoid sinuses with small arachnoid granulations within as well as in the occipital sinus.
Case Discussion
The occipital sinus must be mentioned in radiological report, especially in patients with posterior fossa masses or conditions that will require a posterior fossa craniotomy, as the sinus may be large or, more importantly, off-midline.
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