Answer:
BENIGN INTRACRANIAL HYPERTENSION(PSEUDOTUMOR CEREBRI)
Findings:
This was a Young female presenting with headache and visual disturbances. 3D SPACE Isotropic Multiplanar Sections reveal:
1.Empty Sella -Sagittal
2.Perioptic Subarachnoid space distension / Optic Nerve Sheath Enlargement -Axial
3.Optic Nerve Tortuosity and Reverse cupping of Optic Disc
4. Bilateral Meckel`s cave dilation -Axial &Coronal
Discussion:
The findings are typical of Benign Intracranial Hypertension Empty sella with Posterior globe flattening (Considered Sine Qua Non),Optic Nerve Sheath Enlargement and Optic nerve tortuosity are diagnostic of Benign Intracranial Hypertension which is called PseudoTumor Cerebri (Idiopathic) when other causes like sinus thrombosis,vasculitis, extrinsic venous compression, or intraluminalTumor are reliably excluded. Other findings which may be associated are Bilateral Transverse sinus stenosis , Meckel`s cave dilation and Petrous Apex Cephaloceles . Teaching Points : 3D Heavily T2W sequences with isotropic resolution provides most of the Information. MR Venogram is mandatory to rule out Cerebral Venous Thrombosis as the cause of Intracranial hypertension or Associated Transverse sinus stenosis
Contributed By: Dr. Babu Peter MD. DNB
Associate Professor, Barnard Institute of Radiology, Chennai
Senior Consultant Radiologist, Aarthi Scans, Chennai
BENIGN INTRACRANIAL HYPERTENSION(PSEUDOTUMOR CEREBRI)
Findings:
This was a Young female presenting with headache and visual disturbances. 3D SPACE Isotropic Multiplanar Sections reveal:
1.Empty Sella -Sagittal
2.Perioptic Subarachnoid space distension / Optic Nerve Sheath Enlargement -Axial
3.Optic Nerve Tortuosity and Reverse cupping of Optic Disc
4. Bilateral Meckel`s cave dilation -Axial &Coronal
Discussion:
The findings are typical of Benign Intracranial Hypertension Empty sella with Posterior globe flattening (Considered Sine Qua Non),Optic Nerve Sheath Enlargement and Optic nerve tortuosity are diagnostic of Benign Intracranial Hypertension which is called PseudoTumor Cerebri (Idiopathic) when other causes like sinus thrombosis,vasculitis, extrinsic venous compression, or intraluminalTumor are reliably excluded. Other findings which may be associated are Bilateral Transverse sinus stenosis , Meckel`s cave dilation and Petrous Apex Cephaloceles . Teaching Points : 3D Heavily T2W sequences with isotropic resolution provides most of the Information. MR Venogram is mandatory to rule out Cerebral Venous Thrombosis as the cause of Intracranial hypertension or Associated Transverse sinus stenosis
Contributed By: Dr. Babu Peter MD. DNB
Associate Professor, Barnard Institute of Radiology, Chennai
Senior Consultant Radiologist, Aarthi Scans, Chennai