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Pott's puffy tumor can be associated with cortical vein thrombosis, epidural abscess, subdural empyema, and brain abscess. The cause of vein thrombosis is explained by venous drainage of the frontal sinus, which occurs through diploic veins, which communicate with the dural venous plexus; septic thrombi can potentially evolve from foci within ...
A spinal epidural abscess (SEA) is a collection of pus or inflammatory granulation between the dura mater and the vertebral column. [1] Currently the annual incidence rate of SEAs is estimated to be 2.5–3 per 10,000 hospital admissions.
Brain abscess (or cerebral abscess) is an abscess within the brain tissue caused by inflammation and collection of infected material coming from local (ear infection, dental abscess, infection of paranasal sinuses, infection of the mastoid air cells of the temporal bone, epidural abscess) or remote (lung, heart, kidney etc.) infectious sources.
In CT scan, subdural hygroma will have same density as the normal CSF. Meanwhile, in MRI, subdural hygroma will have same intensity with CSF. If iodinated contrast is administered during CT scan, the hygroma will produce high density because of the contrast at 120 kVp. However, at 190 kVp, hygroma with contrast will have intermediate density. [2]
CT angiography is a contrast CT taken at the location and corresponding phase of the blood vessels of interest, in order to detect vascular diseases. For example, an abdominal aortic angiography is taken in the arterial phase in the abdominal level, and is useful to detect for example aortic dissection. [10]
CT scans reveal subdural or epidural hematomas in 20% of unconscious people. [15] In the hallmark of epidural hematoma, people may regain consciousness and appear completely normal during what is called a lucid interval, only to descend suddenly and rapidly into unconsciousness later. This lucid interval, which depends on the extent of the ...
This would be part of a patient's rehab routine. In addition, computed axial tomography (CT) scans of a patient's head may reveal the presence of tumors and other abnormalities such as hydrocephalus. [20] Like MRI and CT scans, another test, called a myelogram, uses radiographs and requires a contrast medium to be injected into the subarachnoid ...
According to a 2008 study, the incidence of discitis in the United States is around 0.4 to 2.4 per 100,000 people each year depending on age group. [5] According to a later 2016 study, the combined prevalence of discitis and vertebral osteomyelitis with or without spinal epidural abscess for persons under 20 years old is uncommon (0.3 per 100,000 persons), and higher in older patients (6.5 per ...