case_images: PMC7248580_01
case_images: a: The preoperative abdominal contrast-enhanced computed tomography examination revealed a well-defined cystic mass in the hepatoduodenal ligament (black arrow), the pancreas was pushed forward (red arrow) and the intrahepatic bile duct was not expanded (yellow arrow). b: The dissociated cystic mass was intraoperatively found to be located behind the hepatoduodenal ligament (black arrow), the common bile duct was not dilated (red arrow), and the liver texture was normal (yellow arrow). c: The retroperitoneal cyst mass was totally resected from its pedicle under the minimally invasive da Vinci surgical system (black arrow), the gallbladder was also normal (red arrow). d: Hematoxylin and eosin staining of the pathological sections of the surgical specimens (magnification, x400.) indicated that a large amount of mesenchymal cells was located in the cyst wall (black arrows).
case_images: gr1.jpg
case_images: PMC7248580_02_gr1.jpg
case_images: fig0005
case_images: During the operation, a well-defined retroperitoneal cystic mass arising from the posterior part of the hepatoduodenal ligament was detected, with grossly normal common bile duct, liver and pancreas (Fig. 1b). The retroperitoneal cyst mass was totally dissociated and excised using electrocautery under the minimally invasive da Vinci surgical system (Fig.1c). The surgical specimens were histopathologically diagnosed as a retroperitoneal MC (Fig. 1d).
case_images: PMC7248580_02
case_images: a: The preoperative abdominal contrast-enhanced computed tomography examination revealed a well-defined cystic mass in the hepatoduodenal ligament (black arrow), the pancreas was pushed forward (red arrow) and the intrahepatic bile duct was not expanded (yellow arrow). b: The dissociated cystic mass was intraoperatively found to be located behind the hepatoduodenal ligament (black arrow), the common bile duct was not dilated (red arrow), and the liver texture was normal (yellow arrow). c: The retroperitoneal cyst mass was totally resected from its pedicle under the minimally invasive da Vinci surgical system (black arrow), the gallbladder was also normal (red arrow). d: Hematoxylin and eosin staining of the pathological sections of the surgical specimens (magnification, x400.) indicated that a large amount of mesenchymal cells was located in the cyst wall (black arrows).
case_images: gr1.jpg
case_images: PMC7248580_02_gr1.jpg
case_images: fig0005
case_images: During the operation, a well-defined retroperitoneal cystic mass arising from the posterior part of the hepatoduodenal ligament was detected, with grossly normal common bile duct, liver and pancreas (Fig. 1b). The retroperitoneal cyst mass was totally dissociated and excised using electrocautery under the minimally invasive da Vinci surgical system (Fig.1c). The surgical specimens were histopathologically diagnosed as a retroperitoneal MC (Fig. 1d).