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Intra and extrahepatic bile ducts are dilated and CBD measured 15 mm in caliber. A 10 mm low signal filling defect is present at distal third of CBD inferring stone.
A 48mm parapelvic cyst is present at right kidney.
Magnetic resonance cholangiopancreatography (MRCP) has largely replaced ERCP as the gold standard for diagnosis of choledocholithiasis, able to achieve similar sensitivity (90-94%) and specificity (95-99%) without ionizing radiation, intravenous contrast, or the complication rate inherent in ERCP.
- Michael Maher, Jr., Adrian K. Dixon. Grainger & Allison's Diagnostic Radiology: Abdominal Imaging. ISBN: 9780702069383
- Chen W, Mo JJ, Lin L, Li CQ, Zhang JF. Diagnostic value of magnetic resonance cholangiopancreatography in choledocholithiasis. World journal of gastroenterology. 21 (11): 3351-60. doi:10.3748/wjg.v21.i11.3351 - Pubmed