Multilocular cyst of kidney with embryonic tissue.

A case of a multilocular cyst in a child is documented, and a brief review of reported cases of multilocular cysts in pediatric age groups is presented. These cases can be divided into two subgroups based on the presence or absence of embryonic tissue within the cysts. The significance of this embryonic tissue with regard to histogenesis and prognosis of the multilocular cysts is discussed.