The ACTH stimulation test results were as follows: basal cortisol level < 0.001 μg/dL (reference range 2–6 μg/dL) and post-ACTH cortisol level 0.1 μg/dL (reference range 6–18 μg/dL; Table 2), which is consistent with a diagnosis of Addison's disease. Here, POMC is linked to primary adrenal insufficiency.