Splenic artery

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Artery: Splenic artery
Gray1188.png
The visceral surface of the spleen.
Gray533.png
Branches of the celiac artery. (Lienal artery is an old term for splenic artery, and is visible at center. The spleen is at center right. The stomach has been flipped out to reveal the splenic artery, so the greater curvature is at the top in this diagram.)
Latinarteria splenica, arteria lienalis
Gray'sp.605
Suppliesspleen
Sourceceliac artery
BranchesPancreatic branches
Pancreatica magna
Left gastro-omental
Short gastric
Trabecular arteries
Posterior Gastric
Veinsplenic vein
MeSHSplenic+Artery
 
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Artery: Splenic artery
Gray1188.png
The visceral surface of the spleen.
Gray533.png
Branches of the celiac artery. (Lienal artery is an old term for splenic artery, and is visible at center. The spleen is at center right. The stomach has been flipped out to reveal the splenic artery, so the greater curvature is at the top in this diagram.)
Latinarteria splenica, arteria lienalis
Gray'sp.605
Suppliesspleen
Sourceceliac artery
BranchesPancreatic branches
Pancreatica magna
Left gastro-omental
Short gastric
Trabecular arteries
Posterior Gastric
Veinsplenic vein
MeSHSplenic+Artery

In anatomy, the splenic artery (in the past called the lienal artery) is the blood vessel that supplies oxygenated blood to the spleen. It branches from the celiac artery, and follows a course superior to the pancreas.

Structure[edit]

The splenic artery gives off branches to the stomach and pancreas before reaching the spleen.

BranchDescription
branch to the pancreasMultiple branches serving the pancreas. The largest is the arteria pancreatica magna
short gastricupper part of greater curvature of the stomach
left gastroepiploicmiddle of greater curvature of the stomach
posterior gastricposterior of stomach, gastric region superior to the splenic artery

Note that the branches of the splenic artery do not reach all the way to the lower part of the greater curvature of the stomach. Instead, that region is supplied by the right gastroepiploic artery, a branch of the gastroduodenal artery. The two gastroepiploic arteries anastomose with each other at that point.

Relations[edit]

Along its course, it is accompanied by a similarly named vein, the splenic vein, which drains into the portal vein.

Clinical significance[edit]

Splenic artery aneurysms are rare[1], but still the third most common abdominal aneurysm, after aneurysms of the abdominal aorta and iliac arteries.[2][3] They may occur in pregnant women in the third trimester and rupture carries a maternal mortality of greater than 50% and a fetal mortality of 70% - 90%. Risk factors include smoking and hypertension.[4] For the treatment of patients who represent a high surgical risk, percutaneous endovascular treatment may be considered.[5]

Additional images[edit]

References[edit]

  1. ^ Abbas MA, Stone WM, Fowl RJ, Gloviczki P, Oldenburg WA, Pairolero PC, Hallett JW, Bower TC, Panneton JM, Cherry KJ (2002)."Splenic arterya neurysms: two decades experience at Mayo clinic". Ann Vasc Surg. 16(4): 442-449. PMID 12089631
  2. ^ Jamsheer NS, Malik M (2001). "Ruptured splenic artery aneurysm". Ann Saudi Med. 21(5-6): pp. 340-341. Accessed July 30, 2005.
  3. ^ Pauletto R, Mieres J, Incarbone A, García A, Santaera O (2013). "Exclusión de aneurisma esplénico gigante con técnica de catéteres mother-in-child en paciente de alto riesgo quirúrgico". Revista Argentina de Cardioangiología Vol. 4(1): pp. 62-65, Buenos Aires (Argentina): Colegio Argentino de Cardioangiología Intervencionista. ISSN 2313-9307, retrieved 11 September 2013.
  4. ^ Suzuki K, Prates JC, DiDio LJ (1978)."Incidence and surgical importance of the posterior gastricartery", Ann Surg. 187(2): 134-136.
  5. ^ Pauletto R, Mieres J, Incarbone A, García A, Santaera O (2013). "Exclusión de aneurisma esplénico gigante con técnica de catéteres mother-in-child en paciente de alto riesgo quirúrgico". Revista Argentina de Cardioangiología Vol. 4(1): pp. 62-65, Buenos Aires (Argentina): Colegio Argentino de Cardioangiología Intervencionista. ISSN 2313-9307, retrieved 11 September 2013.

External links[edit]