Ansa pancreatica
Last revised by Dr Yuranga Weerakkody ◉ on 15 Dec 2019
Citation, DOI & article data
Citation:
V, U., Weerakkody, Y. Ansa pancreatica. Reference article, Radiopaedia.org. (accessed on 29 Sep 2022) https://doi.org/10.53347/rID-25464
Permalink:
rID:
25464
Article created:
26 Oct 2013 by Dr Umamaheswara Reddy V
Revisions:
14 times by 7 users - see full revision history
System:
Section:
Tags:
Synonyms:
- Ansa pancreatica type of ductal anatomy
The ansa pancreatica is a rare type of anatomical variation of the pancreatic duct. It is a communication between the main pancreatic duct (of Wirsung) and the accessory pancreatic duct (of Santorini). Recently, the ansa pancreatica has been considered as a predisposing factor in patients with idiopathic acute pancreatitis 3.
The ansa pancreatica arises as a branch duct from the main pancreatic duct. It descends down initially, it then ascends upward forming a loop finally terminating at the minor papilla.
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
Related articles: Anatomy: Abdominopelvic
- skeleton of the abdomen and pelvis
- muscles of the abdomen and pelvis
- spaces of the abdomen and pelvis
- anterior abdominal wall
- posterior abdominal wall
- abdominal cavity
- pelvic cavity
- perineum
- abdominal and pelvic viscera
- gastrointestinal tract
- spleen
- hepatobiliary system
-
endocrine system
-
adrenal gland
- adrenal vessels
- chromaffin cells
- variants
- pancreas
- organs of Zuckerkandl
-
adrenal gland
-
urinary system
-
kidney
- renal pelvis
- renal sinus
- avascular plane of Brodel
-
variants
- number
- fusion
- location
- shape
- ureter
- urinary bladder
- urethra
- embryology
-
kidney
- male reproductive system
-
female reproductive system
- vulva
- vagina
- uterus
- adnexa
- Fallopian tubes
- ovaries
- broad ligament (mnemonic)
- variant anatomy
- embryology
- blood supply of the abdomen and pelvis
- arteries
-
abdominal aorta
- inferior phrenic artery
- celiac artery
- superior mesenteric artery
- middle suprarenal artery
- renal artery (variant anatomy)
- gonadal artery (ovarian artery | testicular artery)
- inferior mesenteric artery
- lumbar arteries
- median sacral artery
-
common iliac artery
- external iliac artery
-
internal iliac artery (mnemonic)
- anterior division
- umbilical artery
- superior vesical artery
- obturator artery
- vaginal artery
- inferior vesical artery
- uterine artery
- middle rectal artery
-
internal pudendal artery
- inferior rectal artery
-
perineal artery
- posterior scrotal artery
- transverse perineal artery
- artery to the bulb
- deep artery of the penis/clitoris
- dorsal artery of the penis/clitoris
- inferior gluteal artery
- posterior division (mnemonic)
- variant anatomy
- anterior division
-
abdominal aorta
- portal venous system
- veins
- anastomoses
- arterioarterial anastomoses
- portal-systemic venous collateral pathways
- watershed areas
- arteries
- lymphatics
- innervation of the abdomen and pelvis
- lumbar plexus
-
sacral plexus
- lumbosacral trunk
- sciatic nerve
- superior gluteal nerve
- inferior gluteal nerve
- nerve to piriformis
- perforating cutaneous nerve
- posterior femoral cutaneous nerve
- parasympathetic pelvic splanchnic nerves
- pudendal nerve
- nerve to quadratus femoris and inferior gemellus muscles
- nerve to internal obturator and superior gemellus muscles
Unable to process the form. Check for errors and try again.