What is the role of CT scanning in the diagnosis of Pneumocystis jiroveci pneumonia (PJP)?

Updated: Apr 24, 2019
  • Author: Shelley A Gilroy, MD, FACP, FIDSA; Chief Editor: Pranatharthi Haran Chandrasekar, MBBS, MD  more...
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High-resolution computed tomography (HRCT) scanning of chest is helpful when the chest radiography findings are equivocal. HRCT yields a high sensitivity for P jiroveci pneumonia (PJP) in patients with HIV infection.

The typical appearance is patchy areas of ground-glass attenuation with a background of interlobular septal thickening. Negative (normal or unchanged) CT scan findings alone do not rule out PJP (see the image below).

CT scan of chest, with classic patchy areas of gro CT scan of chest, with classic patchy areas of ground-glass attenuation.

Go to Imaging Pneumocystis Carinii Pneumonia for complete information on this topic.

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