Pubertal gilt (V2/W3). Urine bladder (UB), intestinal loop (IL) and uterus (U) appear as well distinguishable structures. UB shows a completely anechoic structure typical of liquids. IL is characterized by the gas hyperechogenicity. U is a central, homogeneous and echogenic structure situated below and in front of UB; it occupies almost the entire screen. The U height (in blue) is greater than two-thirds of the total height of the image (in pink), which highlights the large volume of the uterus, characteristic of a pubertal gilt