Toxoplasmosis CT: Difference between revisions
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==CT== | ==CT== | ||
Toxoplasmic [[encephalitis]] is the most common cause of intracerebral mass lesions and is thought to be caused by reactivation of chronic infection. Intracerebral mass lesions can be diagnosed using CT scan. | Toxoplasmic [[encephalitis]] is the most common cause of intracerebral mass lesions and is thought to be caused by reactivation of chronic infection. Typically cerebral toxoplasmosis manifest as multiple lesions, with a predilection for the basal ganglia, thalami, and corticomedullary junction. Intracerebral mass lesions can be diagnosed using CT scan. | ||
Findings of CT brain include: | |||
*Multiple hypodense regions predominantly in the basal ganglia and at the corticomedullary junction. | |||
*Size is variable, from less than 1 cm to more than 3 cm, and there may be associated mass effect. | |||
*Enhancement: following administration of contrast there is nodular or ring enhancement which is typically thin and smooth 5 | |||
*Double-dose delayed scan: may show a central filling on delayed scans | |||
*Calcification: seen in treated cases; may be dot-like or thick and 'chunky' | |||
===Intracranial Toxoplasmosis=== | ===Intracranial Toxoplasmosis=== | ||
<gallery> | <gallery> | ||
Revision as of 19:26, 31 May 2017
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Toxoplasmosis Microchapters |
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Diagnosis |
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Treatment |
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Case Studies |
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Toxoplasmosis CT On the Web |
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American Roentgen Ray Society Images of Toxoplasmosis CT |
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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]
CT
Toxoplasmic encephalitis is the most common cause of intracerebral mass lesions and is thought to be caused by reactivation of chronic infection. Typically cerebral toxoplasmosis manifest as multiple lesions, with a predilection for the basal ganglia, thalami, and corticomedullary junction. Intracerebral mass lesions can be diagnosed using CT scan. Findings of CT brain include:
- Multiple hypodense regions predominantly in the basal ganglia and at the corticomedullary junction.
- Size is variable, from less than 1 cm to more than 3 cm, and there may be associated mass effect.
- Enhancement: following administration of contrast there is nodular or ring enhancement which is typically thin and smooth 5
- Double-dose delayed scan: may show a central filling on delayed scans
- Calcification: seen in treated cases; may be dot-like or thick and 'chunky'
