Echinococcal disease is caused by infection with the metacestode stage of the tapeworm Echinococcus,
which belongs to the family Taeniidae. Four species of Echinococcus produce infection in humans; E.
granulosus and E. multilocularis are the commonest, causing cystic echinococcosis (CE) and alveolar
echinococcosis (AE), respectively. The clinical features of infection due to E. granulosus and E. multilocularis
differed from each other. The two other species, E. vogeli and E. oligarthrus, cause polycystic
echinococcosis but have only rarely had been ass-ociated with man. Surgery is still the gold standard
treatment, chemotherapy is retracted to some patient, because yields inconsistent result. The study was carried
out up on 16 male patients with single giant uncomplicated lung hydatid admitted to Kobry El Kobba Military
Campus. The patients was randomly divided into two groups, GI included 8 patients, of whom 6 patients with
right lung lesion and 2 with left lung lesion. One of the 6 patients with right side liver lesion was treated by
cystotomy, after aspiration of cyst fluid and enucleation of germinal layer and de-roofing the cyst. G II included
8 patients, 4 patients with left side lesion and 4 with right side lesion and 2 patients had both lung and
The most diagnostic tool was chest radiography and CT. Treatment included medical and surgical treatment
was divided into conservative surgery and radical surgery. Both groups were treated by conservative
surgical method but the outcome in GI was better than in GII.