Cerebral thrombosis occurs when a blood clot, or thrombus, develops in one of the brain's blood vessels, causing what is known as a thrombotic stroke. Embolic strokes, on the other hand, are caused by cerebral embolism, which is when a portion of a blood clot in another part of the bod...
Blood travels in arteries from your heart to the rest of your body. Blood clots can sometimes form in the arteries in and around your heart. This is more likely to happen if you have atherosclerosis, a buildup of a sticky substance called plaque on the insides of your arteries. Plaque ca...
(PET) scans. The blood supply feeding a tumour can be assessed by using an X-ray procedure calledangiography. A definitive diagnosis usually requires removal of brain tissue for analysis; often this is done during tumour-removal surgery. In other cases, a needlebiopsyguided by the images ...
Stroke, sudden impairment of brain function resulting from a substantial reduction in blood flow to some part of the brain or from intracranial bleeding. The consequences of stroke may include transient or lasting paralysis, difficulties in speaking or e
A stroke happens when a blood vessel in the brain bursts (called a hemorrhagic stroke) or becomes blocked by a clot (called an ischemic stroke). On the other hand, an aneurysm is a bulge that occurs because of a weak artery wall. However, if an aneurysm bursts and bleeds, it may be...
A brain bleed (brain hemorrhage) occurs when blood vessels in the brain are damaged, such as by a head injury, problems with blood clotting and/or damage to the blood vessels in the brain, or a ruptured brain aneurysm. There are several types of brain bl
Syphilis of the brain, therefore, may display itself in the guise of any disease of the brain, its coverings or its constituents. Fortunately, we are able by examination of the blood serum and of the cerebrospinal fluid to determine whether or not such disease is due to syphilis. In many ...
the restroom or water fountain. However, when a patient has been under anesthesia and has been lying very still, the risk for blood clots increases. For certain types of surgeries, such as repair of a broken hip or knee or a hip replacement surgery, the risk for blood clots is very ...
COVID-19 can be associated with neurological complications. Here the authors show that markers of brain injury, but not immune markers, are elevated in the blood of patients with COVID-19 both early and months after SARS-CoV-2 infection, particularly in those with brain dysfunction or neurologi...
A large amount of research has focused on theneurotransmittersystems in autism, and many studies have reported involvement of theserotonin(5-HT) and the inhibitorygamma-aminobutyric acid(GABA) systems. Early findings of elevated serotonin in theperipheralblood(hyperserotonemia) in many autistic individ...