c l i n i c a l f o l i o s : n a r r a t i v e





A D V E R T I S E M E N T

 

Spleen Anatomy: 7

A D V E R T I S E M E N T

   
 

The tail of the pancreas usually is found a short distance from the caudal end of the splenic hilum where it is at risk for injury during splenectomy. Posterior to the pancreas and splenic vessels is the fusion fascia formed from the apposition of the left side of the dorsal mesogastrium and the parietal peritoneum overlying the renal (Gerota's) fascia.      

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Spleen Anatomy: 8

A D V E R T I S E M E N T

   
 

The peritoneal reflections ("ligaments") around the spleen derive from embryonic development. The peritoneum covering the back wall of the lesser sac (omental bursa) continues over the hilum and reaches the greater curvature of the stomach as the gastrosplenic ligament. The lesser sac surfaces were the right side of the dorsal mesogastrium. The gastrosplenic ligament originates at the hilum and is sandwiched between the posterior wall of the stomach and the gastric surface of the spleen (see cross section below). It is wider near the lower pole and narrower near the upper. The bulging dorsal mesogastrium below the lower pole of the spleen formed the greater omentum and the gastrocolic portion contains the left gastroepiploic vessels.    

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Spleen Anatomy: 9

A D V E R T I S E M E N T

   
 

Accessory splenic tissue can be found elsewhere in derivatives of the dorsal mesogastrium in 10-20% of individuals. These are usually small and solitary but may be multiple. They are commonly found in the splenic pedicle and hilum, near the anterior border and in the greater omentum.      

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This page was last modified on 6/30/1999.