Ansa pancreatica
Citation, DOI, disclosures and article data
At the time the article was created Umamaheswara Reddy V had no recorded disclosures.
View Umamaheswara Reddy V's current disclosuresAt the time the article was last revised Yaïr Glick had no financial relationships to ineligible companies to disclose.
View Yaïr Glick's current disclosures- Ansa pancreatica type of ductal anatomy
Ansa pancreatica is a rare type of anatomical variation of the pancreatic duct. It comprises a focal atrophy at the origin of the accessory pancreatic duct (of Santorini) from the main pancreatic duct (of Wirsung) and a looping duct arising from the main pancreatic duct and continuing as the accessory pancreatic duct, which terminates at the minor papilla (see Figure 1). The ansa pancreatica thus bridges the gap caused by the accessory pancreatic duct atrophy, albeit by a curved route that first descends, then ascends.
Ansa pancreatica has been considered as a predisposing factor in patients with idiopathic acute pancreatitis 3,6.
This type of pancreatic ductal variation can be identified on ERCP or MRCP studies.
History and etymology
It is derived from the Latin "ansa", which means "handle" as its configuration resembles a handle.
References
- 1. Bhasin DK, Rana SS, Nanda M et-al. Ansa pancreatica type of ductal anatomy in a patient with idiopathic acute pancreatitis. JOP. 2006;7 (3): 315-20. Pubmed citation
- 2. Delhay M, Matos C, Deviere J. Acute relapsing pancreatitis. Congenital variants: diagnosis, treatment, outcome. JOP. 2002;2 (6): 373-81. Pubmed citation
- 3. Jarrar MS, Khenissi A, Ghrissi R et-al. Ansa pancreatica: an anatomic variation and a rare cause of acute pancreatitis. Surg Radiol Anat. 2013;35 (8): 745-8. doi:10.1007/s00276-013-1103-7 - Pubmed citation
- 4. Mortelé KJ, Rocha TC, Streeter JL et-al. Multimodality imaging of pancreatic and biliary congenital anomalies. Radiographics. 2006;26 (3): 715-31. Radiographics (full text) - doi:10.1148/rg.263055164 - Pubmed citation
- 5. Adibelli ZH, Adatepe M, Imamoglu C, Esen OS, Erkan N, Yildirim M. Anatomic variations of the pancreatic duct and their relevance with the Cambridge classification system: MRCP findings of 1158 consecutive patients. (2016) Radiology and oncology. 50 (4): 370-377. doi:10.1515/raon-2016-0041 - Pubmed
- 6. Ha J, Kim K, Kim J et al. Ansa Pancreatica-Type Anatomic Variation of the Pancreatic Duct in Patients with Recurrent Acute Pancreatitis and Chronic Localized Pancreatitis. J Korean Soc Radiol. 2019;80(2):365. doi:10.3348/jksr.2019.80.2.365
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