waldenström hyperglobulinemic purpura waldenström hyperglobulinemic purpura waldenström hyperglobulinemic purpura is a skin condition that presents with episodic showers of petechiae (small red or purple spots) occurring on all parts of the body, most profusely on the lower extremities.: 823 waldenström hyperglobulinemic purpuraother namespurpura hyperglobulinemicaspecialtydermatology