Diagnosis of Hydatid disease is by -
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- Biopsy
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- X-ray
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- Casoni test
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- Serum examination
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ANS:
- Serological tests are the most sensitive and specific tests; includes Immunoblast test, arcs test, ELISA and indirect hemagglutination tests.
- “The immunoblast test, where available, is the test of choice.” - CMDT, 2005, p 1463.
- Casoni’s test - Intradennal injection of 0.2 ml of fresh sterile hydatid fluid produces a wheal of 5 cm in diameter within half an hour in pts with hydatid disease. It has been abandoned because of poor specificity.