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Thoracic Imaging |
1 From the Departments of Radiology, Albert Einstein College of Medicine, Montefiore Medical Center, 111 E 210th St, Bronx, NY 10467 (L.B.H., G.L., A.S.); University of North Carolina School of Medicine, Chapel Hill (P.L.M.); University of Maryland, Baltimore (C.S.W.). From the 1999 RSNA scientific assembly. Received February 21, 2000; revision requested April 5; revision received May 23; accepted June 28. Address correspondence to L.B.H. (e-mail: lharamati@aecom.yu.edu).
PURPOSE: To determine the radiologic and clinical features of newly diagnosed pulmonary sarcoidosis in human immunodeficiency virus (HIV)–infected patients.
MATERIALS AND METHODS: Ten HIV-infected patients (seven women, three men; age range, 26–66 years; mean age, 37 years) with newly diagnosed sarcoidosis between 1989 and 1997 were retrospectively identified. Charts were reviewed for the interval between the two diagnoses, CD4 cell count, signs or symptoms, angiotensin-converting enzyme level, and initiation of highly active antiretroviral therapy (HAART). Chest radiographs (n = 10) and computed tomographic (CT) scans (n = 8) were assessed for lymphadenopathy, pulmonary nodules, focal consolidation, reticular or granular opacities (thickened interlobular septa and ground-glass opacities at CT), cysts or cavities, and fibrosis.
RESULTS: Mean interval between the two diagnoses was 3 years. Mean CD4 cell count was 213 cells per cubic millimeter. When sarcoidosis was diagnosed, eight patients had pulmonary signs or symptoms. The angiotensin-converting enzyme level was elevated in five of six patients; two developed sarcoidosis after beginning HAART. Chest radiographs revealed lymphadenopathy, pulmonary nodules, focal consolidation, reticular opacities, granular opacities, and cysts or cavities. Chest CT scans revealed lymphadenopathy, nodules, thickened interlobular septa, focal consolidation, reticular opacities, ground-glass opacities, and cysts or cavities. There was no relationship between the radiographic findings of sarcoidosis and the CD4 cell count.
CONCLUSION: The radiologic features of newly diagnosed sarcoidosis in HIV-infected patients resemble the findings of sarcoidosis in non–HIV-infected patients. In HIV-infected patients receiving HAART, sarcoidosis may be a manifestation of disease related to restoration of the immune system.
Index terms: Acquired immunodeficiency syndrome (AIDS), 60.2518 • Lung, CT, 60.1211, 60.12118 • Sarcoidosis, 60.22
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