6/30/23, 11:49 PM Gingival hyperpigmentation Pathway Feedback Search Clinical Topics Home Findings Gingival hyperpigmentation Gingival hyperpigmentation More common causes Tobacco use Tattoo Less common causes Melanoma Lichen planus Neurofibromatosis type 1 Addison's disease Melanocytic nevus Lead poisoning McCune-Albright syndrome Peutz-Jeghers syndrome Uncommon causes Oral melanoacanthoma https://web.pathway.md/findings/recyyElAIxja7YTws 1/1