SOVEREIGN, ISM / SCIENCE PHOTO LIBRARY SOVEREIGN, ISM / SCIENCE PHOTO LIBRARY
Volvulus of the stomach, barium swallow X-ray. Volvulus is the abnormal twisting of an organ, which typically leads to it becoming blocked and deprived of blood. This is seen by the narrowing of the white region, which is the barium meal passing through the stomach, and becoming blocked by the volvulus. Only a small part of the barium meal is seen passing downwards into the main body of the stomach. Gastric volvulus usually occurs in cases of hiatus hernia, when the stomach protrudes through the hole through which the oesophagus passes through the diaphragm. It causes vomiting and pain, and can lead to tissue necrosis due to lack of blood flow, which can be fatal.
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