Modality: X-ray (Frontal)

- “ The patient underwent laparoscopy which identified a perforated duodenal ulcer. ”

Used in the following article:

  • Rigler sign - “ The Rigler sign, also known as the double wall sign, is seen on a radiograph of the abdomen when the air is present on both sides of the intestine...”
  • Peptic ulcer disease - “ Peptic ulcer disease (PUD) encompasses a number of entities, united by the presence of mucosal ulceration secondary to the effects of gastric acid...”

View full size version of Rigler's sign on chest x-ray

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