2. HYDATID DISEASE HYDATIDOSIS ECHINOCOCUS GRANULOSUS

3. Known to Hippocrates Strongly suspected in the 17th century

4. Tape worm Echinococus Granolosus Echinococus Alveolaris Echinococus Vogeli

6. The protoscolex attaches to the host intestine and developes in to a tape worm Adult tape worm is found in the small intestine of the canine definitive host

7. Liver 70% Solitary 75% Brain Breast Kidney Soft tissue Heart & Pericardium Lung Spleen Pancreas Ovary Bone

8. Liver cysts increase their diameter 2-3 Cm each year

9. Complication Cyst biliary communication Intra biliary rupture Intra abdominal rupture Intra thorasic rupture Infection of hepatic hydatid Cyst death

10. Most common presentation Painful or painless hepatomegaly or abdominal mass

11. Diagnostic Studies Imaging techniques Immunologic diagnosis

12. Imaging techniques X-ray Sonography CT scan Radio-nuclide scaning

13. Immunologic diagnosis Immuno electro phoresis Indirect hemagglutination test Latex agglutination test Complement fixation test ELISA Casoni test

14. Arc 5 negative 2-3 years after surgery, if positive after 3 years, disease recurrent

15. Medical treatment Mebendazole Albendazole Praziquantel

16. Effective treatment for hydatid cyst is surgery

17. Scolicidal Agents Silver nitrate 0.5% Cetrimide 0.5% Hyper tonic saline Formaline Ethanol