Diagnostic Accuracy of the Initial Endoscopy for Ampullary Tumors
| Autor: | Rohyun Sung, Jong Soon Jang, Hee Seung Lee, Myeong Ho Yeon, Seungho Lee, Ki Bae Kim, Mi Jin Kim, Jae Geun Park, Joung-Ho Han, Joo Young Lee, Seon Mee Park |
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| Rok vydání: | 2014 |
| Předmět: |
Pathology
medicine.medical_specialty medicine.diagnostic_test Endoscope business.industry Gastroenterology Medicine (miscellaneous) Diagnostic accuracy medicine.disease Endoscopy Endoscopic imaging Endoscopic examination Paraganglioma Papillary tumors Biopsy medicine Radiology Nuclear Medicine and imaging Original Article Radiology Medical diagnosis business |
| Zdroj: | Clinical Endoscopy |
| ISSN: | 2234-2400 |
| Popis: | Background/aims Ampullary tumors come in a wide variety of malignant forms. We evaluated the diagnostic accuracy of endoscopy for ampullary tumors, and analyzed the causes of misdiagnosis. Methods We compared endoscopic imaging and biopsy results to final diagnoses. Types of endoscope, numbers of biopsy specimens taken, and final diagnoses were evaluated as possible factors influencing diagnostic accuracy. Results Final diagnoses were 19 adenocarcinomas, 18 normal or papillitis, 11 adenomas, two adenomyomas, one paraganglioma, and one neuroendocrine tumor. The diagnostic accuracy of endoscopic imaging or the initial biopsy was identical (67.3%). At least one test was concordant with the final diagnosis in all except two cases. Compared with the final diagnosis, endoscopic imaging tended to show more advanced tumors, whereas the initial biopsy revealed less advanced lesions. The diagnostic accuracy of the initial biopsy was influenced by the type of endoscope used and the final diagnosis, but not by the number of biopsies taken. Conclusions Endoscopy has limited accuracy in the diagnosis of ampullary tumors. However, most cases with concordant endoscopic imaging and biopsy results are identical to the final diagnosis. Therefore, in cases where both of these tests disagree, re-evaluation with a side-viewing endoscope after resolution of papillitis is required. |
| Databáze: | OpenAIRE |
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