What is it about?
Commonly, a polypoid gallbladder tumor with a deep hypoechoic area and a conically thickened outermost hyperechoic layer suggests an adenocarcinoma invading the shallow subserosa. Although the presented case showed a similar gallbladder tumor accompanied by pancreaticobiliary maljunction, the histopathology indicated a hyperplastic polyp with massive fibrosis without an adenocarcinoma invading subserosa.
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Why is it important?
Although a polypoid gallbladder tumor with a deep hypoechoic area suggests an adenocarcinoma invading subserosa, accompanied by abundant fibrosis and lymphocytic infiltration, a particular benign protruded lesion may rarely show a deep hypoechoic area, corresponding to only massive fibrosis without an adenocarcinoma invading subserosa.
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This page is a summary of: Hyperplastic Polyp of the Gallbladder Mimicking a Shallow T2 Gallbladder Carcinoma: A Case Report, Journal of Diagnostic Medical Sonography, November 2020, SAGE Publications, DOI: 10.1177/8756479320965211.
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