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TB in
HIV-positive individuals has a different mode of presentation, and may go
undetected for some time. It occurs mainly in young individuals, manifests minimal
caseation, plenty of AFBs (acid fast bacilli) often extra-cellular,
and in 50% of cases, another organ than the lung is primarily affected. A negative
tuberculin test, the presence of bilateral hilar lymph-adenopathy, the lack of cavitation,
the presence of diffuse lung infiltrates, and / or an extra-pulmonary localization may
contribute to delay in diagnosis, especially in cases where the HIV-status is not yet
known. TB R/ should include an initiation phase of 3-4 mo. with INH, RMP, PZA, EMB and a consolidation phase of 6-9 mo. with INH and RMP. If necessary, DOT should be applied. |