Gabuzda and Szydlowski (1975) described a young female patient with recurrent phlebitis and spontaneous aggregation of her platelets when suspended in either her own plasma or that of another. Her mother, who had a myocardial infarction in her ... Gabuzda and Szydlowski (1975) described a young female patient with recurrent phlebitis and spontaneous aggregation of her platelets when suspended in either her own plasma or that of another. Her mother, who had a myocardial infarction in her 50s, showed the same phenomenon. The father was normal.