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  • Title: [Radiological features of AIDS complicated by pulmonary tuberculosis and the association with CD4+ T lymphocytes].
    Author: Lu PX, Yu WY, Zhu WK, Liu Y, Liu JQ.
    Journal: Zhonghua Jie He He Hu Xi Za Zhi; 2005 Jan; 28(1):13-6. PubMed ID: 15774185.
    Abstract:
    OBJECTIVE: To explore the imaging features in cases with AIDS complicated by pulmonary tuberculosis and the association with CD(4)(+) T lymphocytes. METHODS: A retrospective analysis was carried out of the manifestations of chest X-rays in patients with late stage AIDS complicate by pulmonary tuberculosis (n = 26 cases) and patients with pulmonary tuberculosis only (n = 60 cases). The results of measurements of CD(4)(+) T lymphocytes were compared. RESULTS: (1) The chest X-ray features in patients with AIDS complicated by pulmonary tuberculosis showed more patchy and blurring shadows (53.8% vs 8.3%; P < 0.01), more military changes (23.1% vs 5.0%; P < 0.05), more enlarged intrathoracic lymph nodes (34.6% vs 8.3%; P < 0.01) as well as more extra-pulmonary tuberculous processes (23.1% vs 3.3%; P < 0.05) as compared to patients with pulmonary tuberculosis alone. Fewer upper lung or apical lesions (23.1% vs 76.7%; P < 0.01), as well as less consolidation (11.5% vs 71.7%; P < 0.01) and cavity formation (7.7% vs 30.0%; P < 0.05) were found in AIDS patients. No significant difference was found in the occurrence of hydrothorax (11.5% vs 20.0%; P > 0.05). (2) The relative numbers of CD(4)(+) T lymphocytes in patients with AIDS complicated by pulmonary tuberculosis and in patients with pulmonary tuberculosis alone were (5.0 +/- 6.4)% and (65.3 +/- 1.5)% respectively. Atypical manifestations of tuberculosis were found in 15 out of the 26 cases of AIDS patients showing a CD(4)(+) T lymphocytic count < 50/microl, in 3 of the 4 cases with the count between 50/microl - 100/microl, while in cases with CD(4)(+)T lymphocytic count between 100/microl -200/microl (n = 4) and > 200/microl (n = 2), numbers of atypical tuberculosis were 2 and 0 respectively. CONCLUSIONS: The chest X-ray changes of tuberculosis in cases with late stage AIDS were mostly of the atypical pattern, and were related to a significant decrease in CD(4)(+)T lymphocyte count.
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