Acute hypertension and perirenal haematoma--a new aspect of Page's syndrome

Chronic hypertension induced by perirenal constrictive processes is known from experimental studies as well as from clinical experience. In this report we present 2 cases of acute hypertension induced by massive perirenal haematoma, in 1 case as a complication following pyeloplasty, in the other as a complication following percutaneous renal biopsy. Since the shock may be masked by the hypertension (and operation thereby postponed) it is essential to be aware of this syndrome.