Intra-oral hyperpigmentation 2009-07-12T10:33:11Z Oral racial pigmentation Dark colour of gums UMLS:C4280387 UMLS:C4280388 SNOMEDCT_US:235038002 UMLS:C4280389 UMLS:C0399483 Gingival hyperpigmentation UMLS:C0877541 Dark color of gums Gingival melanin pigmentation Hyperpigmentation of oral mucosa Pigmentation of alveolar ridges is common in people with dark skin pigmentation. This term encompasses a range of pigmentary findings, from freckles to generalized hyperpigmentation. Pigmented gums Increased pigmentation, either focal or generalized, of the mucosa of the mouth. HP:0010284 Oral mucosa melanin pigmentation Abnormal pigmentation of the oral mucosa