Presentation
History of head trauma, clinically well.
Patient Data
Age: 10 years
Gender: Male
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A fluid attenuation rounded lesion is seen in the straight sinus just proximal to the confluence of sinuses, measuring 7 x 7 mm.
Otherwise normal brain CT.
Case Discussion
Intraluminal dural venous sinus cysts are very rare congenital malformations. They are usually simple cysts but may occasionally be dermoid cysts.
They are usually asymptomatic and incidental. However, when large, they may produce symptoms secondary to obstruction to the venous outflow. The usual symptoms are headache but may also cause syncope.
The important differential diagnosis involves adipose tissue, arachnoid granulations and aeroceles.
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