Mirizzi's syndrome pathophysiology: Difference between revisions

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==Pathophysiology==
==Pathophysiology==


Multiple large [[gallstone]]s can reside chronically in the [[Hartmann's pouch]] of the [[gallbladder]], causing [[inflammation]], [[necrosis]], scarring and ultimately [[fistula]] formation into the adjacent common bile duct (CBD). As a result, the CBD becomes obstructed by either scar or stone, resulting in [[jaundice]]. It can be divided into four types. Type I does not involve a fistula at all. Types II- IV involve fistulas of different sizes.
*Mirizzi’s syndrome is caused by gallstone impaction in the [[cystic duct]] or neck of [[gallbladder]] resulting in chronic [[inflammation]] that leads to the compression, [[necrosis]] and [[fibrosis]] of [[common bile duct]].
*This can result in [[fistula]] formation into the adjacent structures like [[common hepatic duct]] or [[common bile duct]].  
*The obstruction of bile duct either by direct compression from gallstone or [[scar]] formation results in [[obstructive jaundice]].  


Type II is classified as a fistula of <33% of the CBD width. Type III Mirizzi Syndrome involves a fistula between 33% and 66% of the CBD width. Type IV involves a fistula of greater than 66% of the CBD width.
*It can be divided into the following types: <ref name="pmid23002333">{{cite journal |vauthors=Beltrán MA |title=Mirizzi syndrome: history, current knowledge and proposal of a simplified classification |journal=World J. Gastroenterol. |volume=18 |issue=34 |pages=4639–50 |date=September 2012 |pmid=23002333 |pmc=3442202 |doi=10.3748/wjg.v18.i34.4639 |url=}}</ref>
 
*'''Type I lesions''' involve external compression of the [[common bile duct]] without any fistula formation.
 
*'''Type II lesions''' involve cholecystobiliary [[fistula]] with erosion of less than one‐third of the circumference of the bile duct.  
 
*'''Type III lesions''' are fistula that involve up to two‐thirds of the duct circumference.
 
*'''Type IV lesions''' are complete destruction of the bile duct. <ref name="pmid2597969">{{cite journal |vauthors=Csendes A, Díaz JC, Burdiles P, Maluenda F, Nava O |title=Mirizzi syndrome and cholecystobiliary fistula: a unifying classification |journal=Br J Surg |volume=76 |issue=11 |pages=1139–43 |date=November 1989 |pmid=2597969 |doi=10.1002/bjs.1800761110 |url=}}</ref>
 
*'''Type V lesions''' described in 2008 by Beltran et al are any of the above 4 types plus the formation of cholecystoenteric fistula. <ref name="pmid29369192">{{cite journal |vauthors=Chen H, Siwo EA, Khu M, Tian Y |title=Current trends in the management of Mirizzi Syndrome: A review of literature |journal=Medicine (Baltimore) |volume=97 |issue=4 |pages=e9691 |date=January 2018 |pmid=29369192 |pmc=5794376 |doi=10.1097/MD.0000000000009691 |url=}}</ref> <ref name="pmid23002333">{{cite journal |vauthors=Beltrán MA |title=Mirizzi syndrome: history, current knowledge and proposal of a simplified classification |journal=World J. Gastroenterol. |volume=18 |issue=34 |pages=4639–50 |date=September 2012 |pmid=23002333 |pmc=3442202 |doi=10.3748/wjg.v18.i34.4639 |url=}}</ref>


==References==
==References==
{{Reflist|2}}
{{Reflist|2}}

Latest revision as of 05:21, 29 July 2020

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]

Overview

Pathophysiology

  • It can be divided into the following types: [1]
  • Type I lesions involve external compression of the common bile duct without any fistula formation.
  • Type II lesions involve cholecystobiliary fistula with erosion of less than one‐third of the circumference of the bile duct.
  • Type III lesions are fistula that involve up to two‐thirds of the duct circumference.
  • Type IV lesions are complete destruction of the bile duct. [2]
  • Type V lesions described in 2008 by Beltran et al are any of the above 4 types plus the formation of cholecystoenteric fistula. [3] [1]

References

  1. 1.0 1.1 Beltrán MA (September 2012). "Mirizzi syndrome: history, current knowledge and proposal of a simplified classification". World J. Gastroenterol. 18 (34): 4639–50. doi:10.3748/wjg.v18.i34.4639. PMC 3442202. PMID 23002333.
  2. Csendes A, Díaz JC, Burdiles P, Maluenda F, Nava O (November 1989). "Mirizzi syndrome and cholecystobiliary fistula: a unifying classification". Br J Surg. 76 (11): 1139–43. doi:10.1002/bjs.1800761110. PMID 2597969.
  3. Chen H, Siwo EA, Khu M, Tian Y (January 2018). "Current trends in the management of Mirizzi Syndrome: A review of literature". Medicine (Baltimore). 97 (4): e9691. doi:10.1097/MD.0000000000009691. PMC 5794376. PMID 29369192.