Review for 10.1186/s12876-021-01970-8 (2021)

Reviewer’s report
Title: 
A rare variation of duplicated portal vein: left branch derived from splenic
vein mimicking cavernous transformation
Version: 
0 
Date: 
24 Aug 2021
Reviewer: 
Maria Ângela Bellomo-Brandão
Reviewer's report:
Researching congenital anomalies and variations in the portal venous (PV)
system is very important to plan surgical interventions and understand the
pathophysiology of liver diseases. This case is a rare condition of PV
duplication, which increases knowledge of portal system variations and draws
attention to the importance of proper investigation.
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