Diffuse hyperpigmentation is seen in all except: September 2007
High-Yield Explanation
Ans. D: Phenylketonuria Common causes of diffuse hyperpigmentation: Addison's disease Porphyria cutanea tarda Cushing's syndrome Hemochromatosis Phaeochromocytoma Biliary cirrhosis High dose ACTH therapy Phenylketonuria results in hypopigmentation