Abstract: A breast screening equipment includes: a support table to support a subject in a prone position; and an examination mechanism having a cylinder which has an opening at an upper end so that a breast to be examiner is inserted and be protruded from an upper surface of the support table, wherein the examination mechanism conducts an ultrasound examination of the inserted breast in the cylinder. The cylinder includes a hollow portion which is located inside of a wall constituting the cylinder and is extended above the upper surface of the support table. The examination mechanism includes a ring-shaped ultrasound transmission reception mechanism being movable inside of the hollow portion vertically.