Hydatid cyst in Morocco: exceptional location: about 3 cases

Aitzirri K*, ElMezouari E.M*, Mohcine A**, Fikri A**, Ghoundale O***, Moutaj R*
Page No. 1-6

Introduction: Hydatidosis is an helminthiasis caused by the development in humans of the larval
form of Echinococcus granulosus. Renal localization ranks 3rd after pulmonary and hepatic
localization. We report three cases of renal hydatid cyst, one of which is associated with splenic
involvement. 1st case: This is a child of 10 years, having contact with dogs from an early age, who
presented a left flank pain. An abdominal ultrasound showed voluminous splenic cystic formation
stage II, associated with cystic multi-compartmental right stage III formation. Abdominal and
pelvic CT with and without contrast confirmed the ultrasound data. The serology was positive to
IgG: 360 IU / ml. according to the anamnestic and radiological data, the diagnosis of bifocal
hydatid cyst was retained. 2nd case: a 45 years man with left lumbar pain that resists to analgesic
treatment, he has had an ultrasound completed by a CT scan showing the presence of a type III
hydatid cyst. The serology with ELISA was negative (IgM and IgG). 3rd case: this is a 40 years
patient who has been operated for an hydatid cyst of the liver 6 years ago, ansd who has pain in the
right hypochondrium with posterior irradiation. CT scan showed the presence of an hydatid cyst
type II. The hydatid serology was positive of IgG type: 125 IU / ml. Discussion: The liver is the
most common site of hydatid disease. Splenic localization comes in 3rd position after the liver and
lung. According to the literature, the rate of associated localization to the hepatic one is different
according to the organs, varying between 1 and 4% for the kidney, and between 0.9 and 8% for the
spleen. Conclusion: In front of an intra-abdominal cystic mass in an endemic country, the diagnosis
of hydatid cyst must be evoked in spite of the exceptional character of its localizations
Keywords : hydatid cyst, rare localization