Acquired Sinus Pericranii Due To Parasagittal Meningiomatous Invasion of the Superior Sagittal Sinus and Bilateral Transverse Sinuses.

BACKGROUND: Sinus pericranii is a rare vascular anomaly characterized by abnormal connections between the extra- and intracranial venous systems. Although the etiology still remains unclear, sinus pericranii is usually congenital in nature, or less likely may be secondary to spontaneous or traumatic causes. CASE DESCRIPTION: We present a unique case of spontaneous sinus pericranii secondary to a parasagittal meningioma invading and occluding the superior sagittal sinus, torcula herophilii, and bilateral transverse sinuses. The resultant venous outlet obstruction and venous hypertension may have been the inciting factors for the development of the collateral channel connecting the intra- and extracranial venous systems. CONCLUSIONS: This case highlights the effect of the reversal of normal venous outflow secondary to meningiomatous occlusion of intracranial dural sinuses. Sinus pericranii may, on rare occasions, represent the sole means for intracranial venous drainage in cases of intracranial venous thrombosis or incomplete development of the cerebral venous system. Therefore, this case also highlights the importance of pretreatment evaluation of the venous drainage system in patients with sinus pericranii and those with meningiomas.

Multiple lateral sinus pericranii--A case report.

INTRODUCTION: Sinus pericranii is a rare vascular anomaly. It is characterized by abnormal communication between the extracranial and intracranial venous system, usually involving the superior sagittal sinus and occasionally the transverse sinus. Off the midline lesions are extremely rare. Multiplicity, associated venous lakes, venous angioma and lateral location are unusual and unique presentation of sinus pericranii. CASE REPORT: A case of multiple congenital off-midline sinus pericranii in the left frontotemporal and parietal region is presented. Magnetic resonance imaging showed an extracranial vascular anomaly connected with the intracranial venous system through abnormal diploic or emissary veins. The lesions were removed completely by surgery. CONCLUSION: Sinus pericranii is a rare vascular malformation with unique clinical and radiological features. Sinus pericranii may cause fatal complications, and it must be treated by surgical or endovascular procedures.

Occipital sinus pericranii superseding both jugular veins: description of two rare pediatric cases.

BACKGROUND AND IMPORTANCE: The extracranial venous drainage of the brain is provided mainly by the jugular veins with the variable participation of extrajugular pathways. CLINICAL PRESENTATION: Two cases of occipital sinus pericranii (SP) were observed. A 6-year-old girl presented with a progressively enlarging occipital lump; she was otherwise asymptomatic. An 8-year-old boy presented with mild nuchal headache. In the former case, neuroimaging examinations confirmed the diagnosis of SP; in the latter, SP was noticed on magnetic resonance imaging because it was neglected at physical examination. In both subjects, the radiological examination also showed bilateral occlusion of the jugular veins with ventricular dilation and herniation of cerebellar tonsils into the foramen magnum. CONCLUSION: Exceptionally, SP was noticed to represent the main venous drainage of the underlying brain, thereby compensating for the intracranial hypertension due to venous engorgement. Preservation of SP was advised, and any surgical or endovascular treatment was contraindicated.

Sinus pericranii occipital asociado a hemangioma cervical gigante / Occipital sinus pericranii associated with giant cervical hemangioma

No disponible

No disponible

Sinus pericranii: dermatologic considerations and literature review.

Sinus pericranii is a rare disorder characterized by a congenital or acquired epicranial blood-filled nodule of the scalp that is in communication with an intracranial dural sinus through dilated diploic veins of the skull. We describe two patients with sinus pericranii: a 3-year-old boy with a congenital lesion and a 3-year-old girl whose lesion appeared after head trauma. We discuss the clinical presentation, dermatologic manifestations, differential diagnosis, and management as described in the available published literature. Patients with sinus pericranii may be brought to the attention of dermatologists and dermatopathologists because of skin changes in the scalp or forehead. The diagnosis is difficult to make clinically, because the skin manifestations are highly variable and may resemble other disorders of the scalp and cranium. The potentially lethal complications including hemorrhage, infection, and air embolism warrant a high index of suspicion for sinus pericranii.

[A case of traumatic sinus pericranii].

Sinus pericranii is a rare vascular anomaly involving an abnormal communication between the extracranial and intracranial circulations. A 33-year-old woman presented with a soft tissue mass at the left frontal region. It was associated with head trauma when she was 12-year-old. The mass had gradually grown and become painful for 20 years. She underwent surgical resection of the mass successfully. This report discusses traumatic sinus pericranii.

[A case of sinus pericranii manifesting as a parietal midline mass].

A case of sinus pericranii was reported. A 5-year-old boy was admitted to our hospital, complaining of scalp mass located at the midparietal region. He was noticed to have had it since 3 years before. The mass decreased in size under mild compression, and during standing position, but increased in size due to lying down. Magnetic resonance imaging (MRI) demonstrated a mass with mixed signal intensity on the T1 weighted image and high signal intensity on the T2 weighted image. Gd-DTPA study showed irregular enhancement. Cerebral angiogram showed no communication between the mass and the superior sagittal sinus. Neither did direct injection of contrast medium into the mass revealed any communication. 3D-CT demonstrated three tiny bone defects beneath the mass. Open surgery revealed that the mass existed between the galea aponeurotica and the periosteum, which had a small communication with the emissary vein. Pathological examination showed a multiple lobular cyst with endothelial wall lining. This case report highlighted the fact that sinus pericranii with minimal communication with the dural sinus can be treated by removal of the mass and closure of the cranial bone abnormalities with bone wax without craniotomy.