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Pulmonary toxoplasmosis in AIDS.

P C Goodman1, L M Schnapp

  • 1Department of Radiology, Duke University Medical Center, Durham, NC 27710.

Radiology
|September 1, 1992
PubMed
Summary

Radiographic patterns of pulmonary toxoplasmosis in acquired immunodeficiency syndrome (AIDS) patients were analyzed. A coarse, nodular pattern on chest X-rays may help differentiate it from Pneumocystis pneumonia (PCP).

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Area of Science:

  • Radiology
  • Infectious Diseases
  • Pulmonology

Background:

  • Acquired immunodeficiency syndrome (AIDS) predisposes individuals to opportunistic infections.
  • Pulmonary toxoplasmosis is an uncommon but serious complication in AIDS patients.
  • Distinguishing pulmonary toxoplasmosis from other opportunistic pneumonias, like Pneumocystis pneumonia (PCP), is crucial for effective treatment.

Purpose of the Study:

  • To review and characterize the chest radiographic findings in patients with AIDS and pulmonary toxoplasmosis.
  • To identify imaging features that may help differentiate pulmonary toxoplasmosis from PCP on chest radiographs.

Main Methods:

  • Retrospective review of chest radiographs from nine patients diagnosed with AIDS and pulmonary toxoplasmosis.
  • Analysis of radiographic patterns, including nodularity, reticulonodularity, and presence of pleural effusion or adenopathy.

Main Results:

  • Three patients presented with a bilateral, diffuse, fine to medium reticulonodular pattern, similar to PCP.
  • Six patients exhibited a bilateral, predominantly coarse, nodular pattern, which is less typical for PCP.
  • No hilar or mediastinal adenopathy was observed; two patients had pleural fluid.

Conclusions:

  • A coarse, nodular pattern on chest radiographs may suggest pulmonary toxoplasmosis in AIDS patients.
  • This pattern can aid in differentiating pulmonary toxoplasmosis from PCP.
  • Other opportunistic infections like tuberculosis, histoplasmosis, and coccidioidomycosis can present with similar radiographic findings, requiring careful clinical correlation.

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