Arachnoid granulation

Case contributed by Dr Anil Geetha Virupakshappa

Presentation

To rule out posterior circulation stroke

Patient Data

Age: 60 years
Gender: Female

A 14 mm hypodense structure is noted within right transverse sinus, looking like a filling defect.

Case Discussion

This is a typical arachnoid granulation at typical location. This should not be confused for a tumor or dural venous sinus thrombosis.

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