نتایج جستجو برای: cranial sinuses
تعداد نتایج: 31161 فیلتر نتایج به سال:
The cavernous sinus (CS) is one of the cranial dural venous sinuses. It differs from other dural sinuses due to its many afferent and efferent venous connections with adjacent structures. It is important to know well about its complex venous anatomy to conduct safe and effective endovascular interventions for the CS. Thus, we reviewed previous literatures concerning the morphological and functi...
BACKGROUND AND PURPOSE Studies have suggested that arachnoid villi or granulations found in the walls of the cranial dural sinuses, olfactory mucosa, and cranial nerve sheaths function as outlets for intracranial CSF. However, their role as CSF outlets has not yet been verified. Here we show that arachnoid protrusions and contiguous diploic veins provide an alternative drainage route for intrac...
The most common clinical presentation of mucormycosis is rhino-orbital-cerebral infection, which is supposed to begin with inhalation of spores into the paranasal sinuses of a vulnerable host. Hyperglycemia, with an associated metabolic acidosis, is the most common underlying state.1 The hallmarks of spread outside the sinuses are tissue necrosis of the palate.1,2 We present a 57-year-old man a...
Frontal pneumatisation is not present in all primates, and among extant species, ethmoidally-derived frontal sinuses are only the genera Pan, Gorilla Homo. A simple repeatable method described here to quantify variation shape, size bilateral of sinuses. This has allowed first large study these variables, including analyses samples P. paniscus, troglodytes, G. gorilla several geographically dive...
Objective: Brain parenchyma herniation into the dural venous sinus or calvarium is considered a rare anatomical variation. The aim of this study to evaluate frequency, localization, and clinical radiological findings brain and/or with high resolution 3 Tesla magnetic resonance imaging in large group patients.Material Methods: A total 6825 cranial images containing pre-contrast post-contrast 3D ...
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...
Anatomical variations of the frontal sinuses that may play a role in the correlation between frontal sinusitis and orbital complications are described. There were used 18 cadavers during routine educational cadaver dissections, one month after theirs withdrawal from the formol basin. The dissections of the cranial cavity and the orbits were performed so as to reveal the frontal sinuses. An unus...
BACKGROUND Cranial dermal sinuses are rare and occur most frequently in the posterior fossa and along the midline. Likewise, supratentorial dermoid cysts are very uncommon. METHOD We report a unique case of an adult female patient with both a supratentorial dermoid cyst and an incomplete dermal sinus tract. RESULTS The patient is a 31-year-old female, who presented with a new onset complex ...
Idiopathic hypertrophic cranial pachymeningitis (IHCP) is a chronic fibrosing inflammatory condition of dura mater resulting in thickening of dura.1 It has a non specific clinical picture comprising headache, vomiting, cranial nerve palsy, ataxia, raised intracranial pressure and focal neurological deficit. These symptoms and signs in IHCP are due to entrapment of cranial nerves, occulsion of C...
This is the first report of a patient presenting with rheumatoid factor (RF) positive hypertrophic cranial pachymeningitis (HCP) in association with hypopituitarism and multiple cranial nerve palsies. Our patient developed palsies of the left II and III, bilateral VI and VII, and right IX, X, and XII cranial nerves. A stimulation test showed hypopituitarism due to hypothalamic failure. The pati...
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