[Renal hydatid disease in childhood. Report of two cases].

Hydatid disease of the kidney is rare and is responsible for only 1-5% of all hydatid disease. Primary hepatorrenal association with hydatid disease is a 3%. A pre-operative diagnosis is often not considered because of the rarity of the disease and the infrequent occurrence of an isolated disease lesion of the kidney. These diagnosis may be mistaken for hepatic hydatid cyst. The accepted treatment is often the partial or total nephrectomy. We report two patients 4 years-old, of both sexes. On admission, a palpable mass in the right upper quadrant of the abdomen is the only clinical sign. In the first case, the pre-operative diagnosis was renal hydatid cyst and hepatorrenal hydatid disease in the second case. A patient who underwent at cyst enucleation only and total pericystectomy was performed in the other patient. The post-operatives courses were excellent in both patients. Total excision of the cyst and its adventitia with conservation of the renal parenchyma is the most desirable treatment, but it's not always feasible.