Iris Flashcards
What is Iris
Extreme immune response against Dead Or live mtb
What are the risk factors for Iris
Shorter interval between ATT and arv CD for less than 50 higher baseline viral load greater increase in cd4 disseminated Tb young male
What is the pathogenesis of iris
Increase antigen in disseminated kochs plus risk factors shift the th2 response to th1 response release of inflammatory cytokines causing Iris
What are the symptoms of iris
Paradoxical deterioration of Tb symptoms and radiological finding after initial improvement
it is a diagnosis of exclusion
What are the types of iris
Unmasking
paradoxical
cryptic
autoimmune
What is Un masking
ASymptomatic in the beginning , later unmasks the inflammation
What is paradoxical Iris
It is the most common type aggravation of the existing inflammation
What is cryptic iris
Radiological worsening is there but there are no symptoms
What is the kind of iris scene in HIV
Both paradoxical and un masking form
there is major pulmonary involvement TB
Meningitis in 5 to 10 months abdominal TB