What is the role of CT scanning in the workup of fungal pneumonia?

Updated: Jun 21, 2019
  • Author: Romeo A Mandanas, MD, FACP; Chief Editor: Guy W Soo Hoo, MD, MPH  more...
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Answer

This imaging study plays a role in the early diagnosis of nonspecific infiltrates in patients who are immunocompromised. [28]

High-resolution chest computed tomography (CT) scanning allows observation of the halo sign in patients with aspergillosis. This is a nodular lesion usually surrounded by a ground-glass opacity or halo. As many as 61% of 235 patients with invasive aspergillosis were found to have the halo sign in one study. [29] Lung lesions from aspergillosis are shown below.

Obtaining a CT scan of the abdomen and brain may reveal sites of dissemination.

CT scan of a patient with invasive aspergillosis s CT scan of a patient with invasive aspergillosis showing multiple lung lesions. The cavitary lesion on the left lung shows a ground-glass halo sign.
CT scan of aspergillosis of the lungs showing mult CT scan of aspergillosis of the lungs showing multiple pleural-based and lung parenchymal lesions.

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