HCV and cryoglobulinemic vasculitis.

munoglobulinemia)or more immunoglobulins (mixedcryoglobulinemia), which precipitate at temperaturesbelow 37 °C and redissolve on re-warming is termed“cryoglobulinemia.” This is an in vitro phenomenon; theactual mechanism(s) of cryoprecipitation remains obscure.It could be secondary to intrinsic characteristics ofboth mono- and polyclonal immunoglobulin (Ig) components;it can be caused as well by the interaction amongsingle components of the cryoprecipitate