نتایج جستجو برای: perivascular space
تعداد نتایج: 500242 فیلتر نتایج به سال:
There are few reported cases of endobronchial metastasis of pheochromocytoma literature. We present here a 56-year old woman who underwent left lower lobectomy of lung, following pneumonia with unresolved chest radiographs. Computed tomography showed a lobulated soft tissue mass, measuring, 38×27 mm, at the perivascular space of anterior mediastinum. The resected specimen, showed lobulated tumo...
OBJECTIVE We sought to identify the prevalence of MRI features of disproportionately enlarged subarachnoid space hydrocephalus in possible idiopathic normal pressure hydrocephalus (DESH-iNPH) and to describe the clinico-radiological features and outcomes of a community-based investigation (The Vienna Trans-Danube Aging study). METHODS Of the 697 inhabitants (all 75 years old), 503 completed e...
Perivascular spaces (PVSs) of the brain, also known as Virchow-Robin spaces are pial-lined interstitial fluidfilled structures that surround the small vessels as they extend into the brain parenchyma. PVSs, which are smaller than 2 mm can be seen in all age groups.1,2 Occasionally, PVSs may become large, cause mass effect and be misdiagnosed as a cystic neoplasm. These giant spaces are most com...
OBJECTIVES We attempted to characterize how drug released into the perivascular space enters the arterial wall and how it is cleared from the local environment. BACKGROUND Drug released into the perivascular space can enter the artery either from the adventitial aspect or from the lumen after absorption by the extraarterial capillaries and mixing within the systemic circulation. Some investig...
there are few reported cases of endobronchial metastasis of pheochromocytoma literature. we present here a 56-year old woman who underwent left lower lobectomy of lung, following pneumonia with unresolved chest radiographs. computed tomography showed a lobulated soft tissue mass, measuring, 38×27 mm, at the perivascular space of anterior mediastinum. the resected specimen, showed lobulated tumo...
As glioma cells infiltrate the brain they become associated with various microanatomic brain structures such as blood vessels, white matter tracts, and brain parenchyma. How these distinct invasion patterns coordinate tumor growth and influence clinical outcomes remain poorly understood. We have investigated how perivascular growth affects glioma growth patterning and response to antiangiogenic...
SUMMARY Cystic parenchymal lesions may pose an important diagnostic challenge, particularly when encountered in unexpected locations. Dilated perivascular spaces, which may mimic cystic neoplasms, are known to occur in the inferior basal ganglia and mesencephalothalamic regions; a focal preference within the subcortical white matter has not been reported. This series describes 15 cases of patie...
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