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Arachnoid cysts are benign sharply demarcated round\ovoid extra-axial structures that follow CSF attenuation. They occur in the cerebrospinal axis in relation to the arachnoid membrane and do not communicate with the ventricular system.
Arachnoid cysts comprise 1% of all intracranial masses... |
Authors: Dr Amorina Ishai, Dr Norman Loberant
Western Galilee Hospital, Nahariya, Israel |
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Embryological failure of notochord separation in the area of the nasopharynx may lead to an abnormal connection between the regressing notochord remnants and pharyngeal endoderm. The result is invagination of pharyngeal mucosa and the formation of a small bursa. If the opening of this bursa... |
Authors: Norman Loberant MD
Western Galilee Hospital, Nahariya, Israel |
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Toxoplasmosis is a disease caused by the parasite Toxoplasma gondii. More than 60 million people in the U.S. harbor the parasite; however, most are asymptomatic carriers (1). The primary host of the parasite is the cat, and... |
Authors: Ahmed Tahboub MD, Norman Loberant MD, Alejandro Livoff MD
Western Galilee Hospital, Nahariya, Israel |
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The common serious consequences of the trauma to the temporal bone are hearing loss and/or facial nerve paralysis (4). Hearing loss can be conductive which is usually associated with longitudinal fractures of the temporal bone and sensorineural hearing loss is seen with transverse... |
Authors: Ekta Dhamija, Paresh Desai
Goa University, Goa Medical College |
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Tuberous sclerosis complex is an autosomal dominant neuorcutaneous disorder characterized by the presence of hamartomatous lesions in multiple organs [1]. Approximately two-thirds of the cases are sporadic. Tuberous sclerosis classically demonstrates the clinical triad of mental retardation,... |
Authors: Eranga Perera, Shweta Bhatt,MD, Vikram S Dogra,MD.
University of Rochester. |
 | They are slow growing benign vascular malformations which account for 0.2 % of all skull vault bone neoplasms . typically occur in women in the fourth and fifth decades of life. Classically they of 3 types : Cavernous , capillary and venous. Cavernous type is the most common and presents as large... |
Authors: Amar Jain, Paresh Desai
Goa University, Goa Medical College |
 | Acute thrombosis of the basilar artery either due to primary atheromatous disease in the vessel or from an embolus is a devastating neurological event. The diagnosis of this condition has to be early enough for planning direct therapeutic interventions or for expediting supportive care. Non... |
Authors: Paresh Desai
Goa University, Goa Medical College |
 | Vertebral steal phenomenon is the flow reversal of ipsilateral vertebral artery due subclavian artery steno-occlusive disease proximal to the origin of vertebral artery. Combination of retrograde flow in the vertebral artery and neurological symptoms are referred as subclavian steal syndrome [1].... |
Authors: Eranga Perera, Shweta Bhatt,MD, Vikram S Dogra,MD.
University of Rochester. |
 | Choroid plexus neoplasms include papillomas and carcinomas, with carcinomas being very rare tumors. They are usually diagnosed in the pediatric age group accounting for 0.6% of pediatric intracranial tumors (1). These lesions are commonly found in the lateral ventricles and rarely in fourth and... |
Authors: Balasubramanya Kolar,MD
University of Rochester |
 | Fibrous dysplasia is a non-inherited developmental disorder in which normal bone marrow is replaced by fibro-osseous tissue. Pathologically, there is abnormal differentiation of the osteoblasts which replace the normal cancellous bone by immature bone and fibrous stroma. The exact etiology of the... |
Authors: Ekta Dhamija, Paresh Desai
Goa University, Goa Medical College |
