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Assessment of Mediastinal Lymph Node Size in Pneumococcal Pneumonia with Bacteremia
- Source :
- Lung. February, 2018, Vol. 196 Issue 1, p43, 6 p.
- Publication Year :
- 2018
-
Abstract
- Introduction The significance of mediastinal lymphadenopathy in bacterial pneumonia is unclear. Methods We performed a retrospective analysis of mediastinal lymph node size determined by chest CT in patients with bacteremic pneumococcal pneumonia. All patients who had positive blood cultures for streptococcus pneumonia over an 11-year period and had a chest CT scan (index CT) within 2 weeks of the positive blood culture were included in the study. Two thoracic radiologists and one pulmonologist independently examined the index CT plus any chest CT scans performed prior (pre-CT) or after (post-CT) the bacteremic episode. Results The study cohort of 49 patients was 57% male, 65% White, with mean age of 53 (SD = 20) years. Mediastinal lymphadenopathy was detected in 25/49 (51%) of the cases. The mean size of the largest mediastinal lymph node in short axis was 0.99 (SD = 0.71), ranging from 0.0 to 2.05 cm. There was no correlation noted between the number of lobes involved with pneumonia, and the size of the largest mediastinal lymph node (p = 0.33) or the number of pathologically enlarged mediastinal lymph nodes (p = 0.08). There was a statistically significant increase in the mean size of the largest lymph node between the pre-CT and index-CT group (p = 0.02), and decrease between the index-CT group and the post-CT (p = 0.03). Conclusion Pneumococcal pneumonia with bacteremia is associated with mild mediastinal lymph node enlargement. The presence of marked mediastinal lymphadenopathy (short axis LN size > 2 cm) should not be assumed from pneumococcal pneumonia.<br />Author(s): Amit Chopra [sup.1] , Aakash Modi [sup.1] , Haroon Chaudhry [sup.1] , Recai Yucel [sup.2] , Neha Rane [sup.1] , John Fantauzzi [sup.3] , Frederic J. Hellwitz [sup.3] , [...]
Details
- Language :
- English
- ISSN :
- 03412040
- Volume :
- 196
- Issue :
- 1
- Database :
- Gale General OneFile
- Journal :
- Lung
- Publication Type :
- Academic Journal
- Accession number :
- edsgcl.527676469
- Full Text :
- https://doi.org/10.1007/s00408-017-0071-9