Introduction Schwannoma of the olfactory groove is an extremely rare tumor that can share a differential diagnosis with meningioma or neuroblastoma. Objectives The authors present a case of giant schwannoma involving the anterior cranial fossa and ethmoid sinuses. Case Report The patient presented with a 30-month history of left nasal obstruction, anosmia, and sporadic ipsilateral bleeding. Com...

BACKGROUND Tinnitus, occurring at least once in a lifetime in about 10-20% of the population, is an important clinical problem with complex etiology. Rare causes of tinnitus include cranial dural arteriovenous fistulas (DAVFs), which are usually small lesions consisting of abnormal connections between branches of dural arteries and venous sinuses or veins. CASE REPORT Authors present a case o...

Blue rubber bleb naevus syndrome is an uncommon disorder whereby patients possess cutaneous vascular malformations. Cranial malformations have been rarely reported in the literature. We report the first ever case of a patient with blue rubber bleb naevus syndrome (BRBNS), who was found to have a symptomatic Chiari malformation and prominent subcutaneous vascular malformations in communication w...

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...

A 26-year-old woman had a peripartum venous thrombotic stroke involving the right parietal lobe. The initial thrombus was present only in the right channel of a congenitally bifurcated superior sagittal sinus. This diagnosis and subsequent thrombus extension were readily shown by magnetic resonance imaging in contrast to equivocal angiography. A subsequent, prospective review of 100 patients un...

Rhinocerebral mucormycosis is an acute fulminant opportunistic fungal infection usually seen in diabetic or immunocompromised patients. The fungi that cause mucormycosis inoculate the nasal mucosa and may spread to the paranasal sinuses, orbit, and brain. Our patient initially presented with mild ethmoid sinusitis. At that time, brain MRI and contrast-enhanced MR angiography were grossly normal...

Psammomatoid ossifying fibromas (POF) represent a rare and unique subtype of fibro-osseous lesions with predilection for the paranasal sinuses and orbits. They have specific histopatholgic features with tendency toward local aggressive behavior with invasion and destruction of adjacent anatomic structures. Symptoms include proptosis, facial swelling, nasal obstruction, pain, sinusitis and heada...

P?1tha]m aQd reti iCop*c examination revealed choked disc the thrn haemorrhages. The right eye was normal; Ho signs?. teeth and sinuses were normal; there were ?* sepsis on the face; the other cranial nerves were normal; the knee and ankle jerks were exaggerated; the plantar reflexes were normal; there was no clonus; the abdominal reflexes were brisk; Kernig's sign was negative; there was no ri...

A 35-year-old black woman had a 6-month history of headaches and a 1-month history of abducens nerve palsy. MR showed a mass in the sella and cavernous sinuses with encasement of the carotid artery. The mass enhanced intensely and homogeneously with Gd-DTPA. Arteriography revealed complete occlusion of the left internal carotid artery and severe stenosis of the C5 and C6 segments of the right i...

Radiographic findings of 15 untreated chondrosarcomas of the cranial and facial bones were reviewed. These tumors have a propensity to occur in the wall of a maxillary sinus, at the junction of sphenoid and ethmoid sinuses and vomer, and at the undersurface of the sphenoid bone. Because of its slow-growing nature, chondrosarcomas tend to be large, multilobulated, and sharply demarcated when det...