HIV AIDS CT: Difference between revisions
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[[File:CT PCP (pneumocystis jirovecii) pneumonia.png|thumb|300px|left|PCP (pneumocystis jirovecii) pneumonia<br>|Image courtesy of Dr Paresh K Desai , [http://www.Radiopaedia.org Radiopedia]. (original file [http://radiopaedia.org/cases/pcp-pneumocystis-jirovecii-pneumonia)] [http://radiopaedia.org/licence Creative Commons BY-SA-NC]]] | [[File:CT PCP (pneumocystis jirovecii) pneumonia.png|thumb|300px|left|PCP (pneumocystis jirovecii) pneumonia<br>|Image courtesy of Dr Paresh K Desai , [http://www.Radiopaedia.org Radiopedia]. (original file [http://radiopaedia.org/cases/pcp-pneumocystis-jirovecii-pneumonia)] [http://radiopaedia.org/licence Creative Commons BY-SA-NC]]] | ||
|[[File: | |[[File:CMV proctitis.png|thumb|300px|left|CMV proctitis<br>|Image courtesy of Dr Frank Gaillard, [http://www.Radiopaedia.org Radiopedia]. (original file [http://radiopaedia.org/cases/cmv-proctitis)] [http://radiopaedia.org/licence Creative Commons BY-SA-NC]]] | ||
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==References== | ==References== | ||
Revision as of 15:49, 14 October 2014
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AIDS Microchapters |
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Diagnosis |
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Treatment |
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Case Studies |
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HIV AIDS CT On the Web |
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American Roentgen Ray Society Images of HIV AIDS CT |
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [3]; Associate Editors-in-Chief: Ujjwal Rastogi, MBBS
Overview
CT scans of chest are important part of diagnosis in HIV patients having pulmonary symptoms. It has an advantage over X-Ray in being more sensitive in detection of early interstitial lung disease, lymphadenopathy, and nodules.
CT
In HIV patients, nodules can result from bacterial infection (pneumonia or mycobacterial disease) or malignancy (most common being lymphoma). Nodules can be with or without cavitation. CT-guided transthoracic needle biopsy is used to make a definitive diagnosis.
A prospective study done in 30 patients comparing the accuracy of high resolution CT in distinguishing between Pneumocystis carinii pneumonia and non- Pneumocystis carinii pneumonia in AIDS patients stated that the sensitivity, specificity, positive predictive and, negative predictive values of the HRCT for the diagnosis for PCP were 100, 83.3, 90.5 and 100 percent, respectively.[1]
HRCT fndings, that are suggestive of PCP are :
- Diffuse or ground glass pattern predominately in the upper lobes with or without cystic change.
HRCT fndings, that are not suggestive of PCP are :
- "Tree in bud" appearance.
- Consolidation.
- Bronchiectasis.
- Lymphadenopathy.
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References
- ↑ Hidalgo A, Falcó V, Mauleón S, Andreu J, Crespo M, Ribera E, Pahissa A, Cáceres J (2003). "Accuracy of high-resolution CT in distinguishing between Pneumocystis carinii pneumonia and non- Pneumocystis carinii pneumonia in AIDS patients". Eur Radiol. 13 (5): 1179–84. doi:10.1007/s00330-002-1641-6. PMID 12695843. Retrieved 2012-02-12. Unknown parameter
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