Dieulafoy lesion: CT diagnosis of this lesser-known cause of gastrointestinal bleeding

A Dieulafoy lesion describes a tortuous, submucosal artery in the gastrointestinal tract—most commonly the posterior stomach—that penetrates through the mucosa over time, eventually perforating to cause severe gastrointestinal bleeding. Due to its insidious onset, tendency to cause intermittent but...

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