Intermittent hyperaldosteronism in a child due to an adrenal adenoma

Aldosterone producing adenoma (APA) is a rare but potentially curable form of paediatric hypertension. We report a case of APA in a 9-year-old boy, su spected due to persistent hypokalaemia. Neither BP nor initial laboratory i nvestigations disclosed the diagnosis and the presence of an APA was sugges ted by functional tests and radiological findings. Histologically, a cortic al tumour was found associated with a marked medullary hyperplasia of both chromaffin and ganglion cells. Conclusion This case reinforces the need for further investigations in pati ents with misleading clinical and laboratory data.