Figure 4c. Images in 17-year-old adolescent who was less than 1 month pregnant and who had sustained blunt abdominal trauma in a domestic assault. She had a small left hemothorax but no intraabdominal injury. (a) Longitudinal US image of pelvis shows trace amount of free fluid (FF) posterior to the uterus (U). The gestational sac is not visualized. (b) Incidental longitudinal US image of left upper quadrant reveals small hemothorax (PLEURAL) above left diaphragm and spleen (S). (c) Transverse CT scan of pelvis confirms presence of the free fluid (arrow) seen at US.