Document Detail

The "reversed halo" sign in pneumonococcal pneumonia: a review with a case report.
MedLine Citation:
PMID:  20556929     Owner:  NLM     Status:  MEDLINE    
The "reversed halo" sign (RHS) is a distinct radiological sign representing a focal rounded area of ground-glass opacity surrounded by a more or less complete ring of consolidation. Initially, it was reported in two cases of cryptogenic organizing pneumonia and was considered to be relatively specific of the disease. Since then, it has been reported in a wide variety of clinical entities, thus reducing its specificity. We describe the reversed halo sign in a case of pneumonococcal pneumonia. To the best of our knowledge, this is the first report in English literature. The presence of the "reversed halo" sign during the resolution phase of pneumonococcal pneumonia has serious implications. First, it further reduces its specificity. Second, it opens new areas of research regarding its significance in cases of cryptogenic organizing pneumonia.
V Tzilas; A Bastas; A Provata; A Koti; V Tzouda; G Tsoukalas
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Publication Detail:
Type:  Case Reports; Journal Article; Review    
Journal Detail:
Title:  European review for medical and pharmacological sciences     Volume:  14     ISSN:  1128-3602     ISO Abbreviation:  Eur Rev Med Pharmacol Sci     Publication Date:  2010 May 
Date Detail:
Created Date:  2010-06-18     Completed Date:  2010-07-08     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9717360     Medline TA:  Eur Rev Med Pharmacol Sci     Country:  Italy    
Other Details:
Languages:  eng     Pagination:  481-6     Citation Subset:  IM    
4th Respiratory Medicine Department, Athens Chest Disease Hospital, Sotiria, Greece.
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MeSH Terms
Cryptogenic Organizing Pneumonia / radiography*
Middle Aged
Pneumonia, Pneumococcal / radiography*
Sensitivity and Specificity

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