"one portal vein has retropancreatic course and the other has a prepancreatic, post-duodenal or preduodenal course"
Line 13:86·Only use medical adjectival hyphens where the letters at the end and start of the compound word are the same, e.g. post-transplant. In this case, don't use the hyphen: 'post-duodenal'.
Biographical Lifespan
suggestion
"History and etymology"
Line 26:1·A bold element in the History and etymology section should be a person; it would be useful to have their lifespan details: '<h4>History and etymology</h4> <p>The first case reported by <strong>Snavely</strong> '