Ascaris-mimicking common bile duct stone: A case report.

paythelady.612 shared this article with you from Inoreader Ascaris-mimicking common bile duct stone: A case report. Μέσω pubmed: "world j clin cases"... Ascaris-mimicking common bile duct stone: A case report. World J Clin Cases. 2020 Oct 06;8(19):4499-4504 Authors: Choi SY, Jo HE, Lee YN, Lee JE, Lee MH, Lim S, Yi BH Abstract BACKGROUND: In most cases, it is not difficult to differentiate common bile duct (CBD) stone from Ascaris infection because they are different disease entities and have different imaging findings. The two diseases usually demonstrate unique characteristic findings on computed tomography or magnetic resonance cholangiopancreatography. However, we report a rare case from our experience in which a CBD stone mimicked and was misdiagnosed as Ascaris. CASE SUMMARY: A 72-year-old male presented with elevated serum liver enzymes. Computed tomography showed a hyper-attenuated, elongated lesion in the CBD lumen and associated biliary inflammation. Magnetic resonance cholangiopancreatography and endoscopic retrograde cholangiopancreatography revealed a linear filling defect in the bile duct. Moreover, elongated echogenic material with a central hypoechogenic area was seen on endoscopic ultrasound. Although the imaging findings caused us to suspect infection with the nematode Ascaris, the lesion was revealed to be a dark-brown-colored CBD stone through endoscopic extraction. CONCLUSION: We report a rare case of a CBD stone that mimicked Ascaris. We also review the literature for side-by-side comparisons of the imaging features of CBD stones and ascariasis. PMID: 33083410 [PubMed] View on the web Inoreader. Take back control of your news feed. Follow us on Twitter and Facebook.