The association of cutaneous and mucosal pigmentation with gastrointestinal polyposis has been well-described as the Peutz-Jeghers syndrome.
A case is described of a patient who has evidence of gastrointestinal polyposis, diffuse and circumscribed macular hyperpigmentation, a nasal polyp, and the additional features of buccal mucosal pigmented papillomas.
Lowe NJ. Peutz-Jeghers Syndrome With Pigmented Oral Papillomas. Arch Dermatol. 1975;111(4):503-505. doi:10.1001/archderm.1975.01630160093012