Proximal lesion
an acute bleed on ct appears hyperdense, hence the use of ct when a head bleed is suspected.
STROKE
Yes
Traumatic lesions to the brain are well seen without i.v. contrast agents. In particular, traumatic hemorrhage, be it epidural, subdural, subarachnoid, parenchymal or intraventricular, is spontaneously hyperdense on CT. Theoretically, i.v. contrast would be, at best useless, at worst counterproductive.
they are hypodense typically though can have a varied appearance. They can be diagnosed definitvely with a contrast enhacned CT or MR due to a characteristic enhancement pattern. They are a benign lesion.
A hyperdense material refers to a substance that has a higher density than its surroundings. It often refers to materials used in medical imaging, like blood or metal, which appear brighter or more opaque on imaging scans due to their density. Hyperdense materials can be useful for identifying abnormalities or structures of interest in imaging studies.
Strictly speaking, the physics of CT scanning involves attenuation of the x-ray by tissues in a manner not always exactly congruent with density differences. Hyperattenuation is a better term than hyperdense for more white and bright on the image. Hyperdense: More dense than brain. Hyperdense on CT shows more white and bright, like bone. Hyperdense abnormalities may be blood if acute, calcium, metal artifact, some tumours
Proximal lesion
A 'lesion' is anything or any site of the body that is not normal.Yes, a lesion is a pathological site.
small subcapsular lesion of the liver
Primary lesion
This has the same effect as a lesion, but is adjustable.
I need to see a doctor about this lesion.Despite his doctors orders, he poked the lesion.
an acute bleed on ct appears hyperdense, hence the use of ct when a head bleed is suspected.
An ovoid lesion is a lesion that is egg-shaped. There are many studies linking these lesions to diseases like multiple sclerosis.
It all depends on what the lesion is made of and where it is on the spine. A benign lesion is non-cancerous whereas a malignant lesion is cancerous.Lesions can be defined according to the patterns they form. Lesions can also be categorized by their size. A gross lesion is one that can be seen with the naked eye. A microscopic or histologic lesion requires the magnification of a microscope to be seen.