Brain abscess differential diagnosis: Difference between revisions
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== Differential Diagnosis== | == Differential Diagnosis== | ||
*Some studies suggest that indium scans can help differentiate abscess from CA, and [[thallium]] [[SPECT]] scans can distinguish [[CNS]] toxoplasmosis from [[lymphoma]]. | *Some studies suggest that indium scans can help differentiate abscess from CA, and [[thallium]] [[SPECT]] scans can distinguish [[CNS]] toxoplasmosis from [[lymphoma]].<ref name="pmid7863938">{{cite journal| author=Ruiz A, Ganz WI, Post MJ, Camp A, Landy H, Mallin W et al.| title=Use of thallium-201 brain SPECT to differentiate cerebral lymphoma from toxoplasma encephalitis in AIDS patients. | journal=AJNR Am J Neuroradiol | year= 1994 | volume= 15 | issue= 10 | pages= 1885-94 | pmid=7863938 | doi= | pmc= | url=http://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=7863938 }} </ref> | ||
* The big differential is [[metastatic tumor]]: abscesses are often located in watershed regions, and [[tumor]]s often enhance diffusely with contrast. | * The big differential is [[metastatic tumor]]: abscesses are often located in watershed regions, and [[tumor]]s often enhance diffusely with contrast. | ||
* Despite these differences, the true diagnosis is sometimes not made until [[biopsy]]. | * Despite these differences, the true diagnosis is sometimes not made until [[biopsy]]. | ||
Revision as of 17:25, 19 October 2015
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]
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Overview
Brain abscess must be differentiated from metastatic tumors, lymphomas, and necrotic tumors.[1]
Differential Diagnosis
- Some studies suggest that indium scans can help differentiate abscess from CA, and thallium SPECT scans can distinguish CNS toxoplasmosis from lymphoma.[2]
- The big differential is metastatic tumor: abscesses are often located in watershed regions, and tumors often enhance diffusely with contrast.
- Despite these differences, the true diagnosis is sometimes not made until biopsy.
- Diagnosis of brain abscesses and necrotic tumors is often impossible without conventional MR imaging.[1]
References
- ↑ 1.0 1.1 Desprechins B, Stadnik T, Koerts G, Shabana W, Breucq C, Osteaux M (1999). "Use of diffusion-weighted MR imaging in differential diagnosis between intracerebral necrotic tumors and cerebral abscesses". AJNR Am J Neuroradiol. 20 (7): 1252–7. PMID 10472982.
- ↑ Ruiz A, Ganz WI, Post MJ, Camp A, Landy H, Mallin W; et al. (1994). "Use of thallium-201 brain SPECT to differentiate cerebral lymphoma from toxoplasma encephalitis in AIDS patients". AJNR Am J Neuroradiol. 15 (10): 1885–94. PMID 7863938.