PURPOSE To compare contrast enhancement per unit of dose of contrast medium in MR imaging at 0.5 and 1.5 T. METHODS Contrast enhancement in images made at 0.5 and 1.5 T after 0.1 mmol/kg of gadopentetate dimeglumine and 0.3 mmol/kg of gadodiamide was measured and the degree of contrast enhancement in the cavernous sinus and pituitary gland compared. RESULTS At both field strengths and both ...

The objective of the current study was to check whether countercurrent transfer of dopamine occurs in the cavernous sinus of the rabbit and whether the rabbit can be used as an animal model to study cavernous sinus function. After exsanguination of the animal, oxygenated and warmed (37°C) Hanseneleit-Krebs buffer with autologous or homologous blood (in a 3:1 or 1:1 ratio) was pumped through bot...

The lateral limit of endoscopic endonasal surgery has yet to be defined. The aim of this study was to investigate the lateral limit of endoscopic endonasal surgery at the level of the sphenoid sinus. Access from the sphenoid sinus to the middle cranial fossa through the cavernous sinus triangles was evaluated by cadaver dissection. Anatomical analysis demonstrated that the medial temporal dura ...

Dr. Eduardo Wajnberg – Rua Lopes Quintas 100 / 602 22460-010 Rio de Janeiro RJ Brasil. E-mail: [email protected] Complex cavernous sinus fistulae (CCF) are a technical challenge to neuro-vascular specialists. Their clinical symptoms are usually a triad of chemosis, ptosis and exophthalmia. Among the most serious symptoms are visual loss, and consequences of brain hemorrhage. The most commonly...

Pneumocephalus is a rare but important complication of acute isolated sphenoid sinusitis (ISS). If not adequately treated, it may cause serious neurological and life-threatening complications. We report the presence of free air in the cavernous sinus arising from intracranial extension of acute ISS. A 41-year-old healthy man presented to our department with a 7-day history of headache. Neurolog...

Cavernous sinus thrombosis not only presents with constitutional symptoms including fever, pain and swelling but also with specific findings such as proptosis, chemosis, periorbital swelling, and cranial nerve palsies. It is known to occur secondary to the spread of paranasal sinus infections in the nose, ethmoidal and sphenoidal sinuses. However, paranasal sinus infection of dental origin is r...

Objectives At the conclusion of this program, the attendee will be able to: 1. Recognize the major presenting signs and symptoms of parasellar and cavernous sinus meningiomas 2. Understand the advantages and disadvantages of the available management options for parasellar and cavernous sinus meningiomas 3. Determine the appropriate management for cavern-ous sinus and parasellar meningiomas CME ...

BACKGROUND AND PURPOSE Dural Carotid Cavernous Fistulas (CCFs) can be treated by transarterial and/or transvenous endovascular techniques. The venous route usually goes through the internal jugular vein (IJV) and the inferior petrosal sinus (IPS) up to the pathologic shunts of the cavernous sinus. In case a thrombosed IPS, catheterization through the obstructed sinus is not always possible and ...

To cite: Koekkoek JAF, Lycklama à Nijeholt GJ, Jellema K, et al. BMJ Case Rep Published online: [please include Day Month Year] doi:10.1136/bcr-2013009013 DESCRIPTION A 69-year-old woman presented with recurrent episodes of heavy epistaxis after previous head trauma. She reported a slowly progressive left-sided headache, a slightly swollen left eye and pulsatile tinnitus for 3 weeks. Her medica...

Ophthalmoplegia is defined as a consequence of multiple cranial nerve paralysis innervated the extraocular muscles. The impairment ophthalmic branch trigeminal will create painful condition. Numerous underlying mechanism have been proposed related to ophthalmoplegia and carotid-cavernous fistula one main causes with sight life threatening outcome if left untreated. Carotid-cavernous arises an a...