Pulmonary cysts associated with Pneumocystis carinii pneumonia in patients with AIDS.

Journal Article (Journal Article)

A diffuse, bilateral interstitial infiltrate is the most common radiographic finding in Pneumocystis carinii pneumonia (PCP) in patients with the acquired immunodeficiency syndrome (AIDS). However, atypical roentgenographic patterns also exist. Chest radiographs of 100 consecutive AIDS patients with PCP were retrospectively analyzed for the presence of pulmonary air-filled cysts, or pneumatoceles, which were identified in 10% of the cases. The pneumatoceles were typically thin-walled with no intracystic material and no predilection for a particular area of the lung. They appear to behave like pneumatoceles due to other infectious processes. They were present on the initial radiograph or developed during treatment of PCP. Analysis of available follow-up radiographs indicated resolution of the pulmonary cysts within 7 months in most cases. The cause of these cysts is unknown, but a "check-valve" obstruction or, perhaps less likely, parenchymal necrosis may be involved. Rupture of these pulmonary cysts may lead to spontaneous pneumothorax.

Full Text

Duke Authors

Cited Authors

  • Sandhu, JS; Goodman, PC

Published Date

  • October 1989

Published In

Volume / Issue

  • 173 / 1

Start / End Page

  • 33 - 35

PubMed ID

  • 2789413

International Standard Serial Number (ISSN)

  • 0033-8419

Digital Object Identifier (DOI)

  • 10.1148/radiology.173.1.2789413


  • eng

Conference Location

  • United States