caa a22 4500 605493995 CHVBK 20210128100523.0 cr unu---uuuuu 210128e20150301xx s 000 0 eng 10.1007/s00261-014-0242-6 doi (NATIONALLICENCE)springer-10.1007/s00261-014-0242-6 Circumportal pancreas: imaging findings in 40 patients [Elektronische Daten] [Rafel Tappouni, James Perumpillichira, Michelle Sekala, Keyanoosh Hosseinzadeh, Clancy Clark, John Leyendecker] Purpose: To analyze the CT and MR imaging features of circumportal pancreas (CP) with emphasis on the relative frequency of variants of parenchymal fusion, ductal anatomy, and vascular anatomy. Methods: A retrospective review of CT and MR imaging findings of 40 patients with CP was performed. CT and MR images were reviewed by two radiologists in consensus. The course of the pancreatic duct in relation to the portal vein (anteportal vs. retroportal), location of the circumvenous pancreatic parenchyma in relation to the splenic vein (suprasplenic vs. infrasplenic), presence or absence of a visible accessory duct posterior to the portal vein, presence of vascular variants, history of pancreatitis and pancreatic surgery were recorded. Cases were classified into four categories: anteportal suprasplenic, retroportal suprasplenic, anteportal infrasplenic, and retroportal infrasplenic. Results: One case of suprasplenic fusion was excluded from the classification due to non-visualization of the pancreatic duct. 32/39(82%) of cases were classified as anteportal suprasplenic, 2/39(5%) as retroportal suprasplenic, 4/39(10%) as anteportal infrasplenic, and 1/39(3%) as retroportal infrasplenic. There were 12 vascular variants including nine with an intraparenchymal course (through the pancreatic head) of the common hepatic artery, one with an intraparenchymal course of the right hepatic artery, two replaced right hepatic arteries from the superior mesenteric artery, and one with an intraparenchymal course of the left gastric vein. Conclusion: Circumportal pancreas is an important pancreatic fusion anomaly with distinctive imaging features. The most common variant of CP is the anteportal suprasplenic subtype, with other subtypes being much less common. Intraparenchymal course of the common hepatic artery is a common variant associated with CP. Recognition of CP is important to avoid potential complications in patients who undergo pancreatic surgery. Springer Science+Business Media New York, 2014 Circumportal nationallicence Pancreas nationallicence CT nationallicence MRI nationallicence Tappouni Rafel Department of Radiology, Wake Forest University, Medical Center Blvd., 27157, Winston-Salem, NC, USA aut Perumpillichira James Department of Radiology, Wake Forest University, Medical Center Blvd., 27157, Winston-Salem, NC, USA aut Sekala Michelle Department of Radiology, Wake Forest University, Medical Center Blvd., 27157, Winston-Salem, NC, USA aut Hosseinzadeh Keyanoosh Department of Radiology, Wake Forest University, Medical Center Blvd., 27157, Winston-Salem, NC, USA aut Clark Clancy Department of Surgery, Wake Forest University, Medical Center Blvd., 27157, Winston-Salem, NC, USA aut Leyendecker John Department of Radiology, Wake Forest University, Medical Center Blvd., 27157, Winston-Salem, NC, USA aut Abdominal Imaging Springer US; http://www.springer-ny.com 40/3(2015-03-01), 521-530 0942-8925 40:3<521 2015 40 261 https://doi.org/10.1007/s00261-014-0242-6 text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s00261-014-0242-6 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Tappouni Rafel Department of Radiology, Wake Forest University, Medical Center Blvd., 27157, Winston-Salem, NC, USA aut NATIONALLICENCE 700 1- Perumpillichira James Department of Radiology, Wake Forest University, Medical Center Blvd., 27157, Winston-Salem, NC, USA aut NATIONALLICENCE 700 1- Sekala Michelle Department of Radiology, Wake Forest University, Medical Center Blvd., 27157, Winston-Salem, NC, USA aut NATIONALLICENCE 700 1- Hosseinzadeh Keyanoosh Department of Radiology, Wake Forest University, Medical Center Blvd., 27157, Winston-Salem, NC, USA aut NATIONALLICENCE 700 1- Clark Clancy Department of Surgery, Wake Forest University, Medical Center Blvd., 27157, Winston-Salem, NC, USA aut NATIONALLICENCE 700 1- Leyendecker John Department of Radiology, Wake Forest University, Medical Center Blvd., 27157, Winston-Salem, NC, USA aut NATIONALLICENCE 773 0- Abdominal Imaging Springer US; http://www.springer-ny.com 40/3(2015-03-01), 521-530 0942-8925 40:3<521 2015 40 261