melasma /me·las·ma/ (mĕ-laz´mah) sharply demarcated, blotchy, brown macules, usually in a symmetrical distribution on the cheeks and forehead and sometimes the upper lip and neck, often associated with pregnancy or other altered hormonal state.
Melasma
melasma.
melasma [mĕ-laz´mah]
melasma
me·las·ma (m -l z m)n. 1. A patchy or generalized dark pigmentation of the skin. 2. See chloasma. |
Melasma
A dark mask-like discoloration that covers the cheeks and bridge of the nose. Also called "the mask of pregnancy."
Mentioned in: Hyperpigmentation, Skin Pigmentation Disorders
melasma.
See chloasma.
Cloasma
A rash secondary to the hormonal effects of pregnancy or oral contraceptives, exacerbated by sunlight
melasma [mĕ-laz´mah]
melanosis with sharply demarcated blotchy, brown macules usually in a symmetric distribution over the cheeks and forehead and sometimes on the upper lip and neck. It is most often seen in women during pregnancy (melasma gravidarum or “mask of pregnancy”), at menopause, and while taking oral contraceptives; it occasionally occurs in women who are not pregnant or taking oral contraceptives, as well as in men. A similar pattern of facial hyperpigmentation may be associated with chronic liver disease. Called also chloasma.
melasma addiso´nii Addison's disease.
melasma gravida´rum melasma occurring during pregnancy.
melasma
dark pigmentation of the skin. Called also chloasma.
melasma
Chloasma, mask of pregnancy Obstetrics Darkening of face and neck with 'blotchy' coalescent hyperpigmented macules seen in pregnancy or with OC use, due to oxidation of tyrosine to melanin, often regressing with delivery;
a similar mask may appear in ♂ without abnormal hormone levels, and in Pts treated with phenytoin
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