Cryptogenic organizing pneumonia CT: Difference between revisions

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==CT==
==CT==
 
*CT scans are not diagnostic of organizing pneumonia, they often show non-specific findings and may demonstrate features of ongoing or resolving pneumonia.
A CT scan may be used to confirm the diagnosis.
*Findings include:<ref name="pmid2108572">{{cite journal| author=Müller NL, Staples CA, Miller RR| title=Bronchiolitis obliterans organizing pneumonia: CT features in 14 patients. | journal=AJR Am J Roentgenol | year= 1990 | volume= 154 | issue= 5 | pages= 983-7 | pmid=2108572 | doi=10.2214/ajr.154.5.2108572 | pmc= | url=http://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=2108572  }} </ref><ref name="pmid8109493">{{cite journal| author=Lee KS, Kullnig P, Hartman TE, Müller NL| title=Cryptogenic organizing pneumonia: CT findings in 43 patients. | journal=AJR Am J Roentgenol | year= 1994 | volume= 162 | issue= 3 | pages= 543-6 | pmid=8109493 | doi=10.2214/ajr.162.3.8109493 | pmc= | url=http://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=8109493  }} </ref>
 
:*Subpleural and/or peribronchovascular consolidation (~80%)
===HRCT===
:*Ground-glass attenuation and nodules (~60%)
 
:*Irregular linear opacities
On HRCT, airspace consolidation with air [[bronchograms]] is present in more than 90% of patients, often with a lower zone predominance. A [[subpleural]] or [[peribronchiolar]] distribution is noted in up to 50% of patients. Ground glass or hazy opacities associated with the consolidation are detected in most patients. Pulmonary physiology is restrictive with a reduced DLCO. Airflow limitation is uncommon; gas exchange is usually abnormal and mild hypoxemia is common.
:*Bronchial wall thickening and dilatation


==References==
==References==

Revision as of 16:45, 8 March 2016

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]

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Overview

CT

  • CT scans are not diagnostic of organizing pneumonia, they often show non-specific findings and may demonstrate features of ongoing or resolving pneumonia.
  • Findings include:[1][2]
  • Subpleural and/or peribronchovascular consolidation (~80%)
  • Ground-glass attenuation and nodules (~60%)
  • Irregular linear opacities
  • Bronchial wall thickening and dilatation

References

  1. Müller NL, Staples CA, Miller RR (1990). "Bronchiolitis obliterans organizing pneumonia: CT features in 14 patients". AJR Am J Roentgenol. 154 (5): 983–7. doi:10.2214/ajr.154.5.2108572. PMID 2108572.
  2. Lee KS, Kullnig P, Hartman TE, Müller NL (1994). "Cryptogenic organizing pneumonia: CT findings in 43 patients". AJR Am J Roentgenol. 162 (3): 543–6. doi:10.2214/ajr.162.3.8109493. PMID 8109493.