HYDATID DISEASE 

• It is parasitic disease caused by Eccinococcus Granulosus. Mode of transmission is by oro-faecal route. The commonest organ involved is the liver. 
• Hydatid cyst wall is composed of three layers: outer cuticular layer or ectocyst, derived from the host; an intermediate laminated layer & inner germinal layer or endocyst, gives rise to brood capsule with scolices, secretes hydatid fluid & forms the outer layer. 
  
  
  

HYDATID DISEASE 

• The cyst is usually remains asymptomatic. Patient may come with abdominal pain or mass. 
• The cyst may cause a visible swelling if located superficially. 
• In the majority of cases, the disease may remain latent for many years.