Brief Article
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World J Gastroenterol. Nov 28, 2010; 16(44): 5592-5597
Published online Nov 28, 2010. doi: 10.3748/wjg.v16.i44.5592
Linear endoscopic ultrasonography vs magnetic resonance imaging in ampullary tumors
Raffaele Manta, Rita Conigliaro, Danilo Castellani, Alessandro Messerotti, Helga Bertani, Giuseppe Sabatino, Elena Vetruccio, Luisa Losi, Vincenzo Villanacci, Gabrio Bassotti
Raffaele Manta, Rita Conigliaro, Alessandro Messerotti, Helga Bertani, Gastroenterology and Endoscopy Unit, Nuovo Ospedale Civile Sant’Agostino Estense, Viale Giardini 1355, 41121 Baggiovara, Modena, Italy
Danilo Castellani, Giuseppe Sabatino, Gabrio Bassotti, Gastroenterology and Hepatology Section, Department of Clinical and Experimental Medicine, University of Perugia Medical School, 06156 Perugia, Italy
Elena Vetruccio, Department of Radiology, S. Agostino Estense Civil Hospital, 41121 Baggiovara, Modena, Italy
Luisa Losi, Department of Pathology, University of Modena, 41121 Modena, Italy
Vincenzo Villanacci, Department of 2nd Pathology, Spedali Civili, 25100 Brescia, Italy
Author contributions: Manta R, Conigliaro R, Messerotti A, Bertani H, Castellani D, Sabatino G and Bassotti G planned the study and wrote the paper; Manta R, Conigliaro R, Messerotti A and Bertani H carried out EUS procedures; Vetruccio E was involved in the radiological assessment of patients; Losi L and Villanacci V analyzed the histological samples.
Correspondence to: Raffaele Manta, MD, Gastroenterology and Endoscopy Unit, Nuovo Ospedale Civile Sant’Agostino Estense, Viale Giardini 1355, 41121 Baggiovara, Modena, Italy.
Telephone: +39-59-3961220 Fax: +39-59-3961216
Received: March 18, 2010
Revised: May 4, 2010
Accepted: May 11, 2010
Published online: November 28, 2010

AIM: To assess linear endoscopic ultrasound (L-EUS) and magnetic resonance imaging (MRI) in biliary tract dilation and suspect small ampullary tumor.

METHODS: L-EUS and MRI data were compared in 24 patients with small ampullary tumors; all with subsequent histological confirmation. Data were collected prospectively and the accuracy of detection, histological characterization and N staging were assessed retrospectively using the results of surgical or endoscopic treatment as a benchmark.

RESULTS: A suspicion of ampullary tumor was present in 75% of MRI and all L-EUS examinations, with 80% agreement between EUS and histological findings at endoscopy. However, L-EUS and histological TN staging at surgery showed moderate agreement (κ = 0.54).

CONCLUSION: L-EUS could be a useful adjunct as a diagnostic tool in the evaluation of patients with suspected ampullary tumors.

Keywords: Ampullary tumors, Endoscopic ultrasound, Magnetic resonance imaging