[Media sclerosis: a case of pseudohypertension].

A 51-year-old diabetic showed symptoms of a hypertensive crisis with a systolic blood pressure above 300 mmHg. The antihypertensive therapy failed and the Doppler-pressure values were also too high for all limb arteries. Duplex-sonography and soft-x-ray examination showed a mediasclerosis of arms and legs. The true pressure, measured at the still compressable arteries of the fingers was relatively low. There was symptomatic improvement after completion of the antihypertensive therapy.