Final answer:
Brain bleeding or hemorrhagic stroke involves blood accumulating in the brain due to a damaged blood vessel, leading to increased pressure and potential loss of function. A blow to the head can cause a hematoma at the pterion, symptoms of which might not be immediate but can quickly become fatal. Diagnostic imaging is used to detect the hemorrhage and assess the extent of damage.
Step-by-step explanation:
To recognize brain bleeding, also known as a hemorrhagic stroke, it is important to understand that this condition is caused by a damaged blood vessel in the brain that leads to accumulation of blood. This accumulation causes physical pressure on the brain tissue and may result in loss of function. In addition, it can squeeze local arteries which compromises blood flow beyond the hemorrhage site.
Another effect of brain bleeding is the breakdown of the blood-brain barrier leading to edema, which is the buildup of additional fluid in the affected region. This can also increase pressure inside the cranial vault, exacerbating the damage.
One potential cause of hemorrhagic stroke is a blow to the lateral side of the head, which can be strong enough to fracture the bones around the pterion, an important clinical landmark. If the underlying artery is damaged, a hematoma can form, putting further pressure on the brain. Symptoms might not show immediately, but the accumulating pressure can become life-threatening.
Diagnostic imaging, like a CT scan, may reveal an intraparenchymal hemorrhage within parts of the brain such as the parietal lobe, indicated by a large accumulation of blood that may disfigure the brain including squeezing of the lateral ventricles.