Parasites and Biliary stones

Echinococcosis ٤٨
Figure (15)
(a) Sagittal US image showing a small daughter cyst within a hydatid cyst.
(b) Corresponding axial CT image showing similar appearances.
(Doyle et al., 2006)
Treatment of cystic echinococcosis:
Asymptomatic hepatic cystic echinococcosis is common in endemic
regions and up to 75% of infected people may remain symptom free for
more than 10 years.Cysts may be seen to expand, become septate, or
calcify when patients are monitored with serial ultrasound (Larrieu and
Frider, 2001).
Surgery:
Surgical therapy is for large cysts, those that are superficial and
likely to rupture, infected cysts, and those in vital anatomical locations or
exerting a mass effect. Surgery may be impractical in patients with