Generalized pigmentation due to Addison disease.

A 10-year-old boy presented with generalized hyperpigmentation, abdominal pain, change in behavior and, no weight gain for 2 years. On examination, he had hypotension and generalized hyperpigmentation that was more marked on gingival mucosa and frictional sites. Serum cortisol was markedly decreased and his CT scan abdomen showed adrenal atrophy. On the basis of clinical and laboratory findings, a diagnosis of Addison disease was made.