| umls-concept:C0162834 | skos:definition | MSH: Excessive pigmentation of the skin, usually as a result of increased epidermal or dermal melanin pigmentation, hypermelanosis. Hyperpigmentation can be localized or generalized. The condition may arise from exposure to light, chemicals or other substances, or from a primary metabolic imbalance.,NCI: Darkening of the skin due to excessive melanin deposition. Causes include skin injuries, pregnancy, eczema, and Addison disease.,NCI: A disorder characterized by darkening of the skin due to excessive melanin deposition.,CHV: the increase in the natural color of the skin,CHV: the increase in the natural color of the skin,CHV: the increase in the natural color of the skin,CHV: the increase in the natural color of the skin | lld:umls |
