نتایج جستجو برای: cranial sinuses
تعداد نتایج: 31161 فیلتر نتایج به سال:
Sinus infections are much less common today than they were in the preantibiotic era, but they still are overdiagnosed. Acute sinusitis, a relatively uncommon cause of headache, is the result of infection of one or more of the cranial sinuses. Acute sinusitis usually is characterized by purulent discharge in the nasal passages and a pain profile determined by the site of infection. Sinusitis is ...
The textbook view that projections of the arachnoid membrane into the cranial venous sinuses represent the primary cerebrospinal fluid (CSF) absorption sites seems incompatible with many clinical and experimental observations. On balance, there is more quantitative evidence suggesting a function for extracranial lymphatic vessels than exists to support a role for arachnoid villi and granulation...
Introduction: Pituitary adenomas are benign tumours which arise within the anterior lobe (adenohypophysis) of the gland in the sella turcica. Lateral extension into the cavernous sinuses can result in involvement of intracavernous part of 3rd, 4th and 6th cranial nerves resulting in superior orbital fissure syndrome. Case Report: We report a case of pituitary macroadenomas in which the involvem...
Cerebral venous thrombosis (CVT) is a cerebrovascular disease associated with a wide variety of clinical signs and symptoms, which may often delay appropriate diagnosis. Single or multiple cranial nerve palsies (III-VIII) without evidence of other signs and symptoms have not, so far, been considered a relevant syndrome of CVT. This event turned out to be a characteristic finding in five patient...
PURPOSE To report the anatomic and radiologic development of the transverse, sigmoid, and occipital sinuses, the emissary veins, and the jugular bulb formation from the jugular sinus in humans before and after birth. METHODS Roentgenograms of 33 injected brains showing the cranial venous system in human fetuses from 3 to 7 months of gestational age and cerebral angiograms of newborns and infa...
The tumors of the anterior cranial cavity can either be malignant or benign. They usually arise in the nasal or Para nasal sinuses. Treatment of these tumors includes major craniofacial resection and reconstruction to prevent cerebrospinal fluid leak and meningitis. In this study we are presenting a technique which is simple and cost-effective. We are reporting a series of nine cases in which t...
Introduction: Skull-based osteomyelitis is bony infection which generally originates from inadequately treated chronic infection, adjoining tissue infection or after trauma.Case: 11 month female child had a trivial fall while standing near a bucket. The child developed fracture of right clavicle and left orbital swelling which was inadequately treated. This resulted in in spread of infection to...
Training in dissection of the skull base is essential for anatomical understanding and correct surgical techniques, but chances for cadaver dissection are limited, so a substitute is very desirable. Modifications of commercially available three-dimensional (3D) temporal bone and whole skull base models made from surgically dissectable artificial bone are proposed to include artificial dura mate...
Extra medullary plasmacytomas occurring as solitary (primary) tumours or secondary manifestations of multiple myeloma most often involve the upper airways and paranasal sinuses. The skull is one of the rarest sites of extra medullary plasmacytoma. Myelomatous deposits in dural reflections distant from the bony skull, i.e. tentorium and falx, are rarer, and probably result from dissection along ...
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