RESPIRATORY
OLD TUBERCULOSIS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Acute (<6 weeks)
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Subacute (6-12 weeks)
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Chronic (>12 weeks)
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Both subacute and chronic
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Detailed explanation-1: -The most common ocular TB manifestation is granulomatous uveitis. The most common presentation is posterior uveitis. The most typical lesions related to ocular TB are choroidal granulomas, occlusive retinal vasculitis, and multifocal serpiginous-like choroiditis.
Detailed explanation-2: -Some people develop TB disease soon (within weeks) after becoming infected, before their immune system can fight the TB bacteria. Other people may get sick years later, when their immune system becomes weak for another reason. Many people with TB infection never develop TB disease.
Detailed explanation-3: -Nearly one-third of the world’s population is latently infected with TB, and more than 9 million new cases are diagnosed each year, 95% in developing countries. Posterior uveitis is the most common presentation of intraocular TB.
Detailed explanation-4: -Incubation period of tuberculosis The period from infection to development of the primary lesion or significant tuberculin reaction is about 3–9 weeks.