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Dandy-Walker Cyst with Occipital Meningocele
Joseph Junewick, MD FACR
over 7 years ago
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Sinus Pericranii

Case Detail

Anatomy: Brain-Spine
Junewick
Joseph Junewick, MD FACR
Diagnostic Category: Normal variant
Created: over 4 years ago
Updated: over 4 years ago
Tags: PEDS
Modality/Study Types: CT
Activities:
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History

Teenage female with headache.


Case Images


Diagnosis

Sinus Pericranii

Findings

CT – Paired parasagittal parietal foramina transmitting veins.

Discussion

Sinus pericranii are calvarial foramina transmitting veins. Anomalous nonmuscular venous channels tightly adherent to the skull surface communicate with the dural venous sinuses through diploic veins. The transient increases in venous pressure lead to varicosities and enlargement of the calvarial foramina. Complications include cosmetic deformity (related to varicosities), headache, vertigo, and local pain.

Reference

Carpenter JS, Rosen CL, Bailes J, et al. Sinus pericranii: imaging findings in two cases of spontaneous partial thrombosis. AJNR (2004); 25:121-125.



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