What is the McDonald criteria for multiple sclerosis?
Under the McDonald Criteria (revised), an MS diagnosis is likely if myelin damage is disseminated in space, as seen in an MRI as: At least one T2 bright lesion in at least two or four CNS locations: the juxtacortical, perventricular and infratentorial areas of the brain, and the spinal cord.
What are Dawson’s fingers?
Dawson’s finger is a type of brain lesion common to people who have MS. These lesions develop on the ventricles, or fluid-filled spaces in the brain. Dawson’s finger lesions can help a doctor diagnose multiple sclerosis (MS) when other symptoms, such as difficulties with movement or thought processes, accompany them.
What are the MRI findings in MS?
Classically, the MRI shows lesions in the white matter deep in the brain near the fluid spaces of the brain (the ventricles). The test may also show changes in the cortex or near the cortex. MRI can also show changes in the brainstem and in the spinal cord.
What does oligoclonal bands in CSF mean?
CSF is the clear fluid that flows in the space around the spinal cord and brain. Oligoclonal bands are proteins called immunoglobulins. The presence of these proteins indicates inflammation of the central nervous system. The presence of oligoclonal bands may point to a diagnosis of multiple sclerosis.
What is Tumefactive?
Tumefactive MS is a rare type that causes a tumor-like growth in the brain. Symptoms are similar to what happens with brain tumors. Over time, it usually turns into relapsing-remitting MS. That’s when you have an episode (a relapse), then get better (remit).
Why does MS cause diarrhea?
Diarrhea may occur due to a loss of sensation in the rectal area, which results in involuntary relaxation, allowing the release of loose stool. MS may also cause overactive bowel functioning or sphincter abnormalities that can lead to diarrhea.
Can MS be diagnosed with an MRI?
MRI plays a vital role in how we diagnose and monitor MS. In fact, over 90% of people have their MS diagnosis confirmed by MRI.
What are the Barkhof criteria for conversion to MS?
The Barkhof criteria are the most specific MRI criteria available for assessing the risk of conversion to MS after CIS and have been incorporated into the new MS diagnostic criteria. However, they were assessed initially for mixed groups of CIS, and little is known about their performance in CISB.
What is the Barkhof criteria for clinical follow-up?
The value of Barkhof criteria with regard to clinical follow-up was expressed as sensitivity, specificity, and accuracy. Accuracy was defined as follows: accuracy = (true-positive findings + true-negative findings) / (true-positive findings + true-negative findings + false-positive findings + false-negative findings).
What are the Barkhof criteria for diagnostic criteria for cytomegalovirus (CIS)?
The criteria include (a) at least 1 gadolinium-enhancing lesion or at least 9 lesions on T2-weighted images, (b) at least 3 periventricular lesions, (c) at least 1 juxtacortical lesion, and (d) at least 1 infratentorial lesion. Barkhof criteria have been tested for specificity and sensitivity in mixed groups of CIS.
Does infratentorial lesion criterion affect the specificity of Barkhof criteria in CISB?
Conclusion The infratentorial lesion criterion is responsible for the lower specificity of Barkhof criteria in CISB.