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Wire‐guided intraduodenal ultrasonography using a catheter probe in the differential diagnosis of enlarged ampullary lesions
Author(s) -
Kim Shin Hee,
Moon Jong Ho,
Lee Yun Nah,
Choi Hyun Jong,
Kim Hee Kyung,
Choi Moon Han,
Lee Tae Hoon,
Cha Sang Woo,
Choi SeoYoun,
Lee Hae Kyung
Publication year - 2017
Publication title -
journal of gastroenterology and hepatology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.214
H-Index - 130
eISSN - 1440-1746
pISSN - 0815-9319
DOI - 10.1111/jgh.13455
Subject(s) - medicine , endoscopic retrograde cholangiopancreatography , differential diagnosis , catheter , ampulla , ampulla of vater , radiology , endoscopic ultrasonography , medical diagnosis , endoscopic ultrasound , diagnostic accuracy , endoscopy , surgery , pancreatitis , pathology , carcinoma
Background and Aim It can be difficult to identify the cause of an enlarged ampulla of Vater (AOV). This study evaluated the accuracy of wire‐guided intraduodenal ultrasonography (US) for the differential diagnosis of an enlarged AOV during endoscopic retrograde cholangiopancreatography (ERCP). Patients and Methods Thirty‐four patients with enlarged AOVs of unknown cause identified on imaging studies or endoscopic observations underwent wire‐guided intraduodenal US using a catheter probe. Results The final diagnoses were malignant or premalignant tumors in 10 patients (29.4%), stones in nine patients (26.5%), inflammation in 14 patients (41.2%), and cyst in one patient (2.9%). The overall diagnostic accuracy of intraduodenal US for enlarged AOVs was 91.2%. The diagnostic accuracies of stones, inflammation, and AOV tumors were 100.0%, 94.1%, and 91.1%, respectively. Conclusions Wire‐guided intraduodenal US using a catheter probe is readily applicable during ERCP and may be useful in the differential diagnosis of enlarged ampullary lesions.

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