i found this image in 2 sources one says addison's Tolerance and Autoimmunity Another says mucosal vitiligo Psoria-Shield Types of Vitiligo And if u see closely there are areas of both vitiligo ( even the lip border/ vermilion border has some hypopigmentation ) and hyperpigmentation (suggestive of Addison's disease ) and both conditions are of autoimmune nature and can coexist in the same patient. Actually i was studying dermat and was on the topic of mucosal vitiligo and may be that influenced what i saw. I would have included McCune Albright in my differential for hyperpigmentation, but becos this seems to be auto immune in nature ( the combo of Addison's and vitiligo ), i would like to go for that combo.