Presentation
Seizures 2 days ago.
Patient Data
Right high parietal subgaleal multiple serpingous dilated extra-cranial venous blood vessels which directly communicate with the intracranial superior sagittal venous sinus through diploic emissary veins.
Soft tissue prominence is noted.
Right high parietal subgaleal venous blood vessels which tightly adhere to the outer calvarium and directly communicate with the intracranial superior sagittal venous sinus through diploic emissary veins.
CT clearly identify the bone defects (enlarged bilateral foramina) through which the emissary veins passes.
Case Discussion
Sinus pericranii (SP) is a cranial venous anomaly in which there is an abnormal communication between intracranial dural sinuses and extracranial venous structures, usually via an emissary transosseous vein.
Differential diagnosis:
- Atretic cephalocele
- dural fistula or arteriovenous malformation
- subepicranial varix (dilated scalp venous sac without communication with intracranial dural sinuses)
- Dermoid or epidermoid sinus
- Sebaceous cyst
- Cephalhematoma
- Infantile hemangioma
Associations
- systemic angiomas
- craniosynostosis