Ultrasound has become a useful diagnostic tool, both in the emergency setting and in field of Internal Medicine. Ultrasound can be useful in determining the location or tissue of origin of abdominal masses, identifying thickening to the gastric or intestinal walls, loss of normal layering to the intestinal or gastric walls, intussusception or dilation of the intestines. The architecture of the liver, spleen, pancreas, kidneys, bladder and adrenal glands can all be assessed in more detail (Figure 1). Free fluid can be identified in smaller amounts than can be appreciated on abdominal radiographs.

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