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Wednesday, December 9, 2020

Large and unusual presentation of gallbladder adenoma: A case report.

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Large and unusual presentation of gallbladder adenoma: A case report.

World J Clin Cases. 2020 Nov 06;8(21):5415-5419

Authors: Cao LL, Shan H

Abstract
BACKGROUND: Gallbladder adenoma is a relatively rare benign tumor with a potential for malignant transformation if found to be greater than 1 cm in size.
CASE SUMMARY: Herein, we report a case of a 51-year-old female with large 3 cm × 3 cm mass of gallbladder adenoma that was misdiagnosed as adenocarcinoma due to its clinical presentation. Computed tomography and magnetic resonance imaging scans showed an irregularly shaped cauliflower-like lump in the gallbladder measuring 38 mm × 32 mm corresponding to a malignant tumor and several gallbladder stones with low diffusion-weighted imaging and equisignal of T1-weighted imaging and T2-weighted imaging; moreover, the CA 19-9 levels were very high (184.1 U/mL). Pathology reports after tumor resection showed adenoma with moderate epithelial atypia and moderate atypia in the focal area with fine pedicle and no clear infiltration.
CONCLUSION: Computed tomography and magnetic resonance imaging scans need to be carefully scrutinized in certain rare cases of adenomas with abnormal imaging features.

PMID: 33269278 [PubMed]

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