[Simple cysts of the testis in children. Apropos of 2 cases].

Reporting two cases of simple testicular cysts in children, the authors analyse these rare benign tumors (9 other cases in literature). The cystic dilatation first affect the rete testis, it can be partial (simple cyst) or extensive (multicystic dysplasia). The primitive perturbation would affect the mesonephrotic formations, with a defect of junction between the two different embryologic formations of the testicle and its excretor system. These tumors are revealed by a large isolated testicle, histology only makes the diagnosis. Despite their benignity, simple orchidectomy is the save treatment; enucleation is justified only when the opposite testicle is also injured.