Internal carotid aneurysms

“Aneurysm” comes from the Greek word aneurysma (ana, meaning across, and eurys, meaning broad) and denotes an abnormal dilatation of an artery. Number of View: 868
Continue reading…

 

Sphenoid wing meningioma MRI

A sphenoid wing meningioma is a benign brain tumor located near the sphenoid bone. Sphenoid wing meningiomas are diagnosed by the combination of suggestive symptoms from the history and physical and neuroimaging by magnetic resonance imaging (MRI) or computer averaged tomography (CT). Number of View: 2245
Continue reading…

 

Frontal mucocele

Frontal sinus mucocele with orbital complications. Number of View: 2045
Continue reading…

 

Lateral recess of the sphenoid sinus

Axial MRI image –┬ápneumatized lateral recesses of the sphenoid sinus, mucocele lateral left recesses of the sphenoid sinus Number of View: 2057
Continue reading…

 

Acoustic neuroma (schwannoma)

Acoustic neuroma (vestibular schwannoma) is an uncommon, benign and usually slow growing tumor that develops on the main nerve leading from your inner ear to your brain. Because branches of this nerve directly influence your balance and hearing, pressure from an acoustic neuroma can cause hearing loss, ringing in your ear and unsteadiness. Number of […]
Continue reading…

 

Mastoiditis

Mastoiditis is the result of an infection that extends to the air cells of the skull behind the ear. Specifically, it is an inflammation of the mucosal lining of the mastoid antrum and mastoid air cell system inside the mastoid process. The mastoid process is the portion of the temporal bone of the skull that […]
Continue reading…

 

Gray matter heterotopia

Gray matter heterotopia (singular heterotopion) is a neurological disorder caused by clumps of grey matter being located in the wrong part of the brain. It is characterized as a type of cortical dysplasia. The neurons in heterotopia appear to be normal, except for their mislocation; nuclear studies have shown glucose metabolism equal to that of […]
Continue reading…

 

Fibrous dysplasia of Sphenoid bone

Fibrous dysplasia is a developmental anomaly that can affect any bone in the body. The skull and facial bones are the affected sites in 10-25% of patients with monostotic fibrous dysplasia and in 50% of patients with polyostotic fibrous dysplasia. MR imaging characteristics of fibrous dysplasia do not share the distinctive features seen on radiography […]
Continue reading…

 

Venous angioma

Venous angiomas, also known as Venous vascular malformations or developmental venous anomalies (DVA), represent congenital anatomically variant pathways in the normal venous drainage of an area of the brain. Number of View: 3577
Continue reading…

 

Brain lipoma

A lipoma is a benign tumor composed of adipose tissue. It is the most common form of soft tissue tumor. Lipomas are soft to the touch, usually movable, and are generally painless. Many lipomas are small (under one centimeter diameter) but can enlarge to sizes greater than six centimeters. Number of View: 4983
Continue reading…