[Primary epithelial cysts of the spleen. Preoperative diagnosis by ultrasonography].

Primary epidermoid cysts of the spleen are rare. The Authors describe 1 case of epidermoid splenic cyst observed in a 9-yr-old boy; they stress the effectiveness of ultrasound in making the preoperative diagnosis; the advantages are minimal patient discomfort, no ionizing radiation, and immediate reassurance to parent that the mass is a cyst.