<prompt> Sustained severe hypertension in children is most commonly suggestive ofCoarctation of aortaPheochromocytomaRenal parenchymatous diseaseDrug induced  <response>: Hypertension in childrenHypertension is defined as the arterial blood pressure above 95th percentile with reference to age and sex.Between the 90th and 95 percentile it is called borderline high blood pressure. Causes of hypertension in childrenEssential hypertension is relatively uncommon 10 in children in contrast to aged persons.The four most common causes of hypertension in children are : -i Chronic glomerulonephritis most common 25 ii Chronic pyelonephritis 10 iii Renal artery stenosis -- 10 iv Essential hypertension 10 RememberMC cause of hypertension in children chronic glomerulonephritis.MC cause renovascular hypertension in children renal artery stenosis. 