HYDATID DISEASE HYDATIDOSIS ECHINOCOCUS GRANULOSUS

Known to Hippocrates Strongly suspected in the 17th century

Tape worm Echinococus Granolosus Echinococus Alveolaris Echinococus Vogeli

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

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

Liver cysts increase their diameter 2-3 Cm each year

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

Most common presentation Painful or painless hepatomegaly or abdominal mass

Diagnostic Studies Imaging techniques Immunologic diagnosis

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

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

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

Medical treatment Mebendazole Albendazole Praziquantel

Effective treatment for hydatid cyst is surgery

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