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Do you have any ideas about a clear differential diagnosis in the case of ocular tuberculosis:
1) with respect to presence of primary ghon's complex which has been walled off by calcification or as an antibioma and sequestration of antigen, to present later in the eye
2) are we looking at just a delayed hypersensitivity reaction
3) a very specific test to diagnose latent manifest TB with ocular uveitis due to TB
4) a simple noninvasive and specific way of screening for ocular TB, a very common case finding seen in clinical settings is a one eyed patient with ocular uveitis awaiting cataract surgery.
The conundrum is use of systemic corticosteroids for ocular TB uveitis component with the hope that there will not be any flare up of pulmonary or extrapulmonary TB (either previously undetected or latent).
A number of tests have been routinely mentioned and time tested - could ocular swab or tear fluids show evidence of mycobacterium tuberculosis from different strains of TB either as the virulent antigen components of M tuberculosis or presence of the AFB?