chloasma


Also found in: Dictionary, Thesaurus, Encyclopedia, Wikipedia.

chloasma

 [klo-az´mah]
hyperpigmentation in circumscribed areas of the skin; called also melasma.
chloasma gravida´rum melasma gravidarum.

chlo·as·ma

(klō-az'mă), Avoid the misspelling/mispronunciation chlorasma.
Melanoderma or melasma characterized by the occurrence of extensive brown patches of irregular shape and size on the skin of the face and elsewhere; the pigmented facial patches if confluent are also called the mask of pregnancy, and are associated most commonly with pregnancy and use of oral contraceptives.
See also: melasma.
[G. chloazō, to become green]

chloasma

/chlo·as·ma/ (klo-az´mah) melasma.

chloasma

(klō-ăz′mə)
n. pl. chloas·mata (-mə-tə)
A patchy brown or dark brown skin discoloration that usually occurs on a woman's face and may result from hormonal changes, as in pregnancy.

chloasma

[klō·az′mə]
Etymology: Gk, chloazein, to be green
tan or brown pigmentation, particularly of the forehead, cheeks, and nose, commonly associated with pregnancy, the use of oral contraceptives, or hormone replacement therapy. The hyperpigmentation may be permanent or may disappear, only to recur with subsequent pregnancies or use of oral contraceptives, and is frequently treated with bleaching agents such as hydroquinone. Also called gravidarum chloasma, mask of pregnancy, melasma.
enlarge picture
Chloasma

melasma

An acquired hypermelanosis with “blotchy” coalescent hyperpigmented macules occuring in sun-exposed areas, especially of the face and neck, which is typically seen in pregnancy or with OC use; it is caused by oxidation of tyrosine to melanin and usually regresses with delivery. A similar mask may appear in men without abnormal hormone levels, and in patients treated with phenytoin.

chloasma

Melasma, cloasma hepaticum Dermatology A term for melasma-like facial hyperpigmentation, which may be a skin manifestation of pregnancy or chronic liver disease

chlo·as·ma

(klō-az'mă)
Melanoderma or melasma characterized by brown patches of irregular shape and size on the face and elsewhere; if confluent, facial patches are called the mask of pregnancy and are associated most commonly with pregnancy and use of oral contraceptives.
[G. chloazō, to become green]

chloasma

(klo-az'ma) [Gr. chloazein, to be green]
Tan to brown, sharply defined patches of skin pigment, usually found symmetrically on the forehead, temples, cheeks, or upper lip. The excess pigmentation often occurs in pregnant women, in women using oral contraceptives, or in patients with underlying liver disease. Women are affected more often than men. Sun exposure tends to worsen the condition. Synonym: melasma
Enlarge picture
CHLOASMA GRAVIDARUM
Enlarge picture
CHLOASMA GRAVIDARUM

chloasma gravidarum

Brownish pigmentation of the face, often occurring in pregnancy. It usually disappears after delivery. It is also seen in some women who take progestational oral contraceptives.
Synonym: mask of pregnancy See: illustrationillustration

chloasma hepaticum

Liver spot.

idiopathic chloasma

Chloasma caused by external agents such as sun, heat, mechanical means, and x-rays.

chloasma traumaticum

Skin discoloration following trauma.

chloasma

A mask-like area of dark coloration (pigmentation) of the skin around the eyes, nose, cheeks and forehead, which often affects women during pregnancy or when taking oral contraceptives. Chloasma is made worse by exposure to sunlight. The pigmentation usually fades in time.

Chloasma

A skin discoloration common during pregnancy, also known as the "mask of pregnancy" or melasma, in which blotches of pale brown skin appear on the face. It is usually caused by hormonal changes. The blotches may appear in the forehead, cheeks, and nose, and may merge into one dark mask. It usually fades gradually after pregnancy, but it may become permanent or recur with subsequent pregnancies. Some women may also find that the line running from the top to the bottom of their abdomen darkens. This is called the linea nigra.
Mentioned in: Pregnancy

chloasma

see melasma.
References in periodicals archive ?
Sun makes Chloasma more obvious, the only treatment she needs is to protect her face from strong sunlight ( she already has the right hat.
A Melasma and chloasma are two names for one problem - pigmentation like a sun tan on the cheeks, nose and upper lip, and sometimes the forehead.
The application of the term chloasma to fit into the description of mild hyperpigmentation of the face of a mottled nature in which no epidermal or dermal changes are evident, except for the hyperpigmentation was first made by Beeker SW.
Chloasma of pregnancy, due to hormonal stimulation of the cells in the skin that produce melanin.
Dr Miriam says: This sounds to me like chloasma, which is pigmentation of the skin, which can occur during pregnancy due to the high level of pregnancy hormones.
Apparently, following the birth of her baby, she has a condition called chloasma, which results in patchy skin-darkening.
It can cover a wide range of imperfections including acne and acne scars, age spots birthmarks, burn scars, chloasma, dark under-eye circles, freckles, hemangiomas, hyper-and hypopigmentation, manifestations of chemotherapy and radiation therapy, melasma, port wine and nevus birthmarks, post laser and post microdermabrasion and chemical peels.
Pregnancy can also cause a brown discolouration of the cheeks - chloasma - which is linked to the increase in hormones.
A Gynaecologist Dr Anne Szarewski says: This is probably a condition known as chloasma, which is more common in women whose oestrogen levels are raised, perhaps through pregnancy or taking the combined oral contraceptive pill.
The mask of pregnancy is called chloasma and it's an increase in the skin pigmentation due to high hormone levels in pregnancy.
Using its Penetrating Therapeutics technologies, Obagi Medical's products are designed to improve penetration of agents across the skin barrier for common and visible skin conditions in adult skin including chloasma, melasma, senile lentigines, acne vulgaris and sun damage.