Figure 4
From: Resection of the mesopancreas (RMP): a new surgical classification of a known anatomical space
A). The pancreatic head was dissected laterally of the Superior Mesenteric Vein (SMV) and is turned to the right side after mobilization. The mesopancreas strains itself dorsally of themesenteric vessels as a whitish-firm, fatty tissue-like layer. PH = Pancreatic Head; SMV = Superior Mesenteric Vein; PV = Portal Vein; MP = Mesopancreas 
. B). Resection of the pancreas and mesopancreas dorsally of the mesenteric vessels en bloc. PH = Pancreatic Head; MP = Mesopancreas ; PAF = Preaortic Fascia, PC = Plexus Coeliacus, PMS = Plexus Mesentericus superior. C). Macroscopically, in the dissected en-bloc specimen of the pancreas and mesopancreas nerve plexuses are found running from the dorsal surface of the pancreatic head to the mesopancreas to establish a perineural plane. PH = Pancreatic Head;NP = Nerve Plexus; SMV = Superior Mesenteric Vein; PV = Portal Vein; MP = Mesopancreas . D). The nerve plexus of the dorsal site of the pancreatic head is depicted in a detailed view after preparation of the layer between pancreas and mesopancreas. PH = Pancreatic Head; NP = Nerve Plexus of the dorsal margin of the pancreatic head.