Meckel's diverticulum pathophysiology: Difference between revisions
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==Pathophysiology== | ==Pathophysiology== | ||
===Presentation | |||
Meckel's diverticulum is located in the distal [[ileum]], usually within about 60-100 cm of the [[ileocecal valve]]. It is typically 3-5 cm long, runs antimesenterically and has its own blood supply. It's left over from the umbilical cord and intestines from our embryonic life. | Meckel's diverticulum is located in the distal [[ileum]], usually within about 60-100 cm of the [[ileocecal valve]]. It is typically 3-5 cm long, runs antimesenterically and has its own blood supply. It's left over from the umbilical cord and intestines from our embryonic life. | ||
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A memory aid is the rule of 2's: '''2%''' (of the population) - '''2''' feet (from the ileocecal valve) - '''2''' inches (in length) - '''2%''' are symptomatic, there are '''2''' types of common ectopic tissue (gastric and pancreatic), the most common age at clinical presentation is '''2''', and males are '''2 times''' as likely to be affected. | A memory aid is the rule of 2's: '''2%''' (of the population) - '''2''' feet (from the ileocecal valve) - '''2''' inches (in length) - '''2%''' are symptomatic, there are '''2''' types of common ectopic tissue (gastric and pancreatic), the most common age at clinical presentation is '''2''', and males are '''2 times''' as likely to be affected. | ||
It can also be present as an indirect hernia, where it is known as a | It can also be present as an indirect hernia, where it is known as a '''Hernia of Littre'''. Furthermore, it can be attached to the umbilical region by the vitelline ligament, with the possibility of vitelline cysts, or even a patent vitelline canal forming a vitelline fistula when the umbilical cord is cut. Torsions of intestine around the intestinal stalk may also occur, leading to obstruction, [[ischemia]], and [[necrosis]]. | ||
==References== | ==References== | ||
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[[Category:Disease]] | [[Category:Disease]] | ||
[[Category:Gastroenterology]] | [[Category:Gastroenterology]] | ||
[[Category:Congenital disorders]] | |||
[[Category:Pediatrics]] | |||
[[Category:Needs overview]] | [[Category:Needs overview]] | ||
Revision as of 19:45, 27 March 2013
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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]
Pathophysiology
===Presentation
Meckel's diverticulum is located in the distal ileum, usually within about 60-100 cm of the ileocecal valve. It is typically 3-5 cm long, runs antimesenterically and has its own blood supply. It's left over from the umbilical cord and intestines from our embryonic life.
A memory aid is the rule of 2's: 2% (of the population) - 2 feet (from the ileocecal valve) - 2 inches (in length) - 2% are symptomatic, there are 2 types of common ectopic tissue (gastric and pancreatic), the most common age at clinical presentation is 2, and males are 2 times as likely to be affected.
It can also be present as an indirect hernia, where it is known as a Hernia of Littre. Furthermore, it can be attached to the umbilical region by the vitelline ligament, with the possibility of vitelline cysts, or even a patent vitelline canal forming a vitelline fistula when the umbilical cord is cut. Torsions of intestine around the intestinal stalk may also occur, leading to obstruction, ischemia, and necrosis.