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vomiting, diarrhoea, Hx epigastric pain O/E pale & sweaty,…

- - - - Anatomically
        
        Oesophageal
      - Gastric
      - Duodenal
- - - - Greater curvature
        
        Upper
        
        Short gastric aa. (splenic a. )
        
        also supplies fundus
        
        Middle
        
        Left gastroepiploic a. (splenic a. ← coeliac trunk)
        
        Lower
        
        Right gastroepiploic a. (gastroduodenal a. ← common hepatic a. ← coeliac trunk)
      - Lesser curvature
        
        Upper
        
        Left gastric a. (←coeliac trunk)
        
        Lower
        
        Right gastric a. (common hepatic a. ← coeliac trunk)
    - - gastric & pyloric bb.
        of right gastric & gastroepiploic aa.
    - - Short gastric a.
        
        Splenic a. → posterior gastric branches
  - - - 1st
        
        Anterior: liver & gallbladder
        
        Posterior: bile duct, gastroduodenal a., IVC & portal vein, lesser sac
        
        Inside: pancreas head, gastroduodenal a. bifurcation
        
        Outside: quadrate lobe liver, neck gallbladder, hepatic a. proper
      - 2nd
        
        Anterior: TC, SI, liver & gallbladder
        
        Posterior: R kidney/ureters/renal a. & v., IVC, right psoas major m.
        
        Inside: pancreas head, pancreaticoduodenal a.
        
        Outside: right colic flexure, AC
      - 3rd
        
        Anterior: SMA, SMV, root mesentery
        
        Posterior: psoas major, right ureter, IVC & aorta, IMA, right gonadal a. & v.
        
        Inside: head pancreas, inferior pancreaticoduodenal aa.
        
        Outside: none
      - 4th
        
        Anterior: root mesentery
        
        Posterior: left psoas major, aorta
        
        Inside: head pancreas