A company executive, who travels worldwide, present with upper abdominal mass and +ve Casoni's test. The organism is:: (A) Echinococcus, (B) E. histolytica, (C) Hepatitis, (D) Ascariasis
Answer is A. Ans. is 'a' i.e., EchinococcusCasoni's test: This is an immediate hypersensitivity (Type I) skin test used for diagnosis of hydatid disease.