Pseudolesion in the right parafissural liver parenchyma on CT: The base is found in embryology and collagen content.
Willemijn M KleinLianne J P SonnemansSabine FranckenbergBarbara FlissDominic GaschoMathias ProkopWouter H LamersJill P J M HikspoorsMichael J ThaliPatricia M FlachPublished in: PloS one (2020)
The right parafissural area contains more collagen and an equal amount of fat compared to the control left side. This supports the hypothesis of delayed, 'third' inflow: the postnatal change in blood supply from umbilical to portal leaves the downstream parafissural area hypoperfused leading to hypoxia which in turn results in collagen accumulation and the persistence of paraumbilical veins of Sappey.