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.
Perspectives
Cautious full-thickness laparoscopic cholecystectomy and histopathological examination of the excised gallbladder should be carried out for the suspected “T2 GBC” lesions to avoid extensive operation.
Ph.D., M.D. Taketoshi Fujimoto
Iida Hospital
Read the Original
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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