PMC8382888_01
Representative abdominal CT, MRI, and MRCP images. (A) CT scan showed a 4 x 3 cm liquid dark area in the theoretical location of the pancreatic segment of the common bile duct, and the cystic wall showed no enhancement (white arrow); (B) MRI showed the spherical dilatation of the cystic dilatation (white arrow); and (C) Magnetic resonance cholangiopancreatography (MRCP) showed a probable choledochal cyst (white arrow).
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F1
Therefore, the patient was diagnosed with a choledochal cyst based on the results of the radiological images preoperatively (Figure 1).
Intraoperative photographs. (A) Cystic duct isolation with an ultrasonic knife (white arrow); (B) CDC and the pancreatic head (white arrows); and (C) CDC and the common bile duct (white arrows). The embedded image showed the excised gallbladder specimen.
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F2
Because the drainage to the bile duct was through a narrow neck and the extrahepatic bile duct was not cystic, the cystic duct was eventually removed (Figure 2).
Postoperative pathological images (H&E staining). Under the microscope, a flat bile duct epithelium could be observed (x100).
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F3
Different from the preoperative diagnosis, the patient was diagnosed with a CDC based on the postoperative pathological findings (Figure 3).