Ghulam Mustafa, Siddique Ahmad, Muhammad Naeem, Inayat Shah Roghani.
Role of ultrasound in the diagnosis of hepatic hydatid cyst.
J Med Sci Jan ;18(3):132-4.

Objectives: To study the accuracy of ultrasound in the diagnosis of hepatic hydatid cyst. Material and Methods: A prospective study carried out in Radiology and Surgical Units of Hayatabad Medical Complex, Peshawar from July 2002 to January 2006. All the patients were scanned for hepatic hydatid cyst and classified on the basis of characteristic ultrasound features. Indirect haemagglutination test was performed in all cases and biopsy taken from the cases in whom surgery was performed. Results: Total of 30 patients were included in the study. Age range was 5-75 yrs with a mean age of 40 years. The sensitivity of ultrasound in the diagnosis of hydatid cyst was 96% and specificity 80%. The number of ultrasound positive cases were 25 (83.3%). Histologically confirmed positive cases were 24 with positive accuracy of 96%, and the ultrasound negative cases were 5 with a negative accuracy of 80%. Majority of the patients presented with type II cyst 16 (53.3%). Conclusion: Ultrasound can diagnose hepatic hydatid cyst with high accuracy.

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