The　influence　of　size　of　the　scatterer　on　the　image　contrast　for　polarization-based　range-gated　imaging　in　turbid　media　is　investigated　here　by　Monte　Carlo　method.　Circularly　polarized　light　would　be　more　efficient　to　eliminate　the　noise　photons　for　both　the　isotropic　medium　as　well　as　the　anisotropic　medium,　as　compared　with　linearly　polarized　light.　The　improvement　in　contrast　is　pronounced　for　isotropic　medium　using　either　linear　or　circular　polarization.　The　plausible　explanations　for　these　observations　are　also　presented.　(C)　2017　Author(s).