Pheochromocytoma with asymmetric septal hypertrophy and Wolff-Parkinson-White syndrome.

A 24-year-old woman with pheochromocytoma associated with asymmetric septal hypertrophy, Wolff-Parkinson-White syndrome and pigmentation was operated on and the tumor was excised. The asymmetric hypertrophy and the pre-excitation disappeared after the operation, but the pigmentation increased. We discuss the relation between excessive catecholamines and these findings.