Casoni test
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The Casoni test is a skin test used in the diagnosis of hydatid disease. The test involves the intradermal injection of 0.5ml of sterilised fluid from hydatid cysts. A wheal response occurring at the injection site within 20 minutes is considered positive.[1] The test is positive in about 90% of cases of hydatid disease affecting the liver, but positive in less than 50% of patients with hydatid disease elsewhere in the body; false positive results are also common. Consequently, serological tests are now generally used.[2]
The test was described in 1912 by Tomaso Casoni.[3]
[edit] References
- ^ Robert A. Evans. Special Tests: The Procedure and Meaning of the Commoner Tests in Hospital, page 14. Elsevier Health Sciences, 2003. ISBN 9780723432890.
- ^ Richard Ravel. Clinical laboratory medicine, page 291. Elsevier Health Sciences, 1994. ISBN 9780815171485.
- ^ Casoni T. La diagnosi biologica dell'echinococcosi umana mediante l'introdermoreazione. Folia Clinica Chimica e Microscopica; 1912: 4
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