RETROVESICAL HYDATID CYST - ABOUT 2 CASES

A hypogastric mass compressing the bladder in an adult, in a zone ende mic for hydatid disease, should raise to suspicion of a retrovesical c yst, especially as the cyst sometimes opens into the bladder resulting in haematuria and hydatiduria. Intravenous urography and ultrasonogra phy facilitate the topographical diagnosis. Treatment is surgical : tr ansperitoneal cystectomy and pericystic resection as extensive as poss ible with exploration of the abdomen looking for other sites (liver, m esentery, omentum). This treatment was successful in the two cases rep orted here. In conclusion, a stable cure can be obtained by adopting a well defined therapeutic approach to these rare lesions.