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False-colour barium meal X-ray revealing cancer (carcinoma) of the stomach. The cancer is located at the base of the stomach, at the entrance to the duodenum. The white mass of constrast medium fills the unaffected (upper) part of the stomach: the lower limit of the white area denotes the upper part of the tumour which forms an obstruction to the barium meal. A faint outline of the curve of the base of the stomach is visible at bottom.
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