henoch-schönlein purpura

n.

1. A form of nonthrombocytopenic purpura occurring most commonly in boys and associated with pain or swelling of the joints, colic, vomiting of blood, passage of bloody stools, and sometimes inflammation of the kidneys.allergic purpura anaphylactoid purpura Schönlein’s disease Schönlein-Henoch purpura