Henoch-Schonlein purpura: Simultaneous occurrence in two siblings

Simultaneous occurrence of Henoch-Schonlein purpura (HSP) in family members is not well documented. We describe simultaneous onset of HSP in two siste rs 1 day after the wearing of new synthetic slippers. Such an occurrence of the disease implies a common cause, however, in most patients the search f or a causative agent is usually futile, There was no clear evidence of infe ction in our patients. The association of the appearance of the disease wit h the use of the slippers in our patients could indicate a possible, althou gh unlikely, cause for their HSP.