[Diagnosis for pedunculated polypoid lesions of the gallbladder by endoscopic ultrasonography].
Establishment of an appropriate diagnostic criteria for differential diagnosis in pedunculated polypoid lesions of the gallbladder by endoscopic ultrasonography (EUS) was attempted. There was a significant difference in the contour and the internal echo pattern shown by EUS between neoplasms and non-neoplasms. The characteristic findings of neoplasms were a nodular or smooth contour and a solid internal echo, while those of non-neoplasms were a granular contour and a spotty internal echo. The contour shown by EUS especially well reflected the gross appearance. Assessment of the contour of lesions was the most reliable in differential diagnosis between neoplasms and non-neoplasms, for example, I p-type carcinomas and large cholesterol polyps; such differential diagnosis is clinically important. It was thought to be reasonable to establish a diagnostic criteria based on EUS findings: if the contour of a lesion is smooth or nodular, the lesion is classified as a neoplasm, and if the contour of a lesion is granular, the lesion is diagnosed as a non-neoplasm.
Kimura
K
K
Department of Gastroenterology, Sendai City Medical Center.
D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D003937:Diagnosis, Differential; D019160:Endosonography; D005260:Female; D005706:Gallbladder Neoplasms / Q000000981:diagnostic imaging* / Q000473:pathology; D006801:Humans; D008297:Male; D008875:Middle Aged