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SummaryA patient with extensive amyloidosis and a selective factor X deficiency is described. The following observations indicate that the factor X deficiency in this case is not inherited.1. The first symptoms of a bleeding tendency appeared at an age of 50 years.2. The patient’s four children had no clotting defect.3. After infusion of 1 liter of fresh plasma no increased factor X activity was observed. No anticoagulants could be demonstrated in vitro.

TRANSIENT ischemic attacks (TIA) occur in 25-40 percent of patients who subsequently sustain a cerebral infarct. But not all of those afflicted consult a doctor before a stroke occurs.