PMC9840193_01
Ulcer formation is observed after papillectomy (a), and blood clots and oozing are observed at the ampulla of Vater (b and c). To prevent migration of PuraStat into the third part of the duodenum, the duodenoscope is adjusted until the ampulla of Vater is at 3-6 O'clock position in the endoscopic image.
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To prevent migration of the PuraStat into the third part of the duodenum, the duodenoscope was adjusted until the ampulla of Vater was at 3-6 O'clock position on the endoscopic image (Fig. 1).