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British Journal of Radiology (2005) 78, 783-786
© 2005 British Institute of Radiology
doi: 10.1259/bjr/84768811

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Rhodococcus equi pneumonia in AIDS: high-resolution CT findings in five patients

E Marchiori, MD 1 N L Müller, MD, PhD 2 R G de Mendonça, MD 1 D Capone, MD 1 A S Souza, Jr, MD 3 D L Escuissato, MD 4 E L Gasparetto, MD 4 and E M F P de Cerqueira, MD 5

Departments of Diagnostic Radiology, 1 University of Rio de Janeiro, Rio de Janeiro, Brazil, 2 University of British Columbia, 2329 West Mall Vancouver, BC Canada V6T 1Z4, 3 University of São José do Rio Preto, Brazil, 4 University of Paraná, Curitiba, Brazil and 5 University of Campinas, Brazil



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Figure 1. 39-year-old man with AIDS and Rhodococcus pneumonia (case 2). (a) High-resolution CT demonstrates consolidation with multiple areas of cavitation in the right upper lobe. Ground-glass opacities are seen adjacent to the consolidation. (b) A thin walled septated cavity is present in the right middle lobe.

 


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Figure 2. 42-year-old man with AIDS and Rhodococcus pneumonia (case 3). (a) High-resolution CT shows consolidation with areas of cavitation in the upper segment of the left lower lobe. Note adjacent centrilobular nodules (white curved arrows) and ground-glass opacities. (b) High-resolution CT demonstrates small centrilobular nodules and ground-glass opacities in the periphery of the consolidation (black arrow). Also note centrilobular nodules (white curved arrows) and "tree in bud" pattern (black curved arrows).

 


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Figure 3. 42-year-old woman with AIDS and Rhodococcus pneumonia (case 1). (a, b) High-resolution CT shows air-space consolidation and cavitation in the posterior segment of the right upper lobe. Areas of consolidation, centrilobular opacities, confluent centrilobular nodules and areas of ground-glass attenuation can be seen adjacent to the consolidation. Also noted are confluent centrilobular nodules and ground-glass opacities (curved black arrows) in the left lung.

 





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