IL37 and cryohydrocytosis: In the CHC-NSF subgroup, we obtained a moderate positive association between CRP and tissue IL-10 level (ρ = 0.639, p = 0.003) and between total cholesterol and tissue IL-23 level (ρ = 0.463, p = 0.046), while there was moderate negative association between fibrinogen and plasma IL-6 levels (ρ = −0.444, p = 0.050).