ʻO Chloasma kahi maʻi maʻamau i loaʻa i ka pigmentation ʻili i ka hana lapaʻau. Loaʻa ka hapa nui i nā wahine hānau keiki, a hiki ke ʻike ʻia i nā kāne i ʻike ʻole ʻia. Hōʻike ʻia ia e ka pigmentation symmetrical ma nā papalina, ka lae a me nā papalina, ʻo ka hapa nui i ke ʻano o nā ʻēheu butterfly. Melemele māmā a ʻeleʻele paha, ʻeleʻele kaumaha a ʻeleʻele paha.
Aneane hiki i nā lāhui a me nā lāhui liʻiliʻi ke hoʻomohala i ka maʻi, akā ʻoi aku ka nui o nā wahi me ka ʻike UV ikaika, e like me Latin America, Asia, a me ʻApelika. ʻO ka hapa nui o ka poʻe maʻi e hoʻomohala i ka maʻi i ko lākou mau makahiki 30 a me 40, a ʻo ka maʻi ma 40 a me 50 mau makahiki he 14% a me 16%, kēlā me kēia. Hoʻomaka ka poʻe ʻili māmā, ulu ka poʻe ʻeleʻele ma hope, ʻoiai ma hope o ka menopause. Hōʻike nā noiʻi mai nā poʻe liʻiliʻi ma Latin America i ka nui o 4% a 10%, 50% i nā wahine hāpai a me 10% i nā kāne.
Wahi a ka wahi o ka hāʻawi ʻana, hiki ke hoʻokaʻawale ʻia ka melasma i 3 mau ʻano lāʻau lapaʻau, me ka waena o ka maka (e pili ana i ka lae, dorsum o ka ihu, nā papalina, a me nā mea ʻē aʻe), zygomatic a me ka mandible, a ʻo ka nui o nā hanana he 65%, 20. %, a me 15%, pakahi. Eia kekahi, ʻo kekahi mau maʻi ʻili idiopathic, e like me ka idiopathic periorbital skin pigmentation, manaʻo ʻia e pili pū me ka melasma. Wahi a ka waiho ʻana o ka melanin i loko o ka ʻili, hiki ke hoʻokaʻawale ʻia ka melasma i nā ʻano epidermal, dermal a me nā ʻano hui like ʻole, ma waena o nā ʻano epidermal ka ʻano maʻamau, a ʻo ke ʻano hui ʻia ka mea nui loa.Laau kukuikōkua no ka ʻike ʻana i nā ʻano lāʻau lapaʻau. I waena o lākou, ʻo ke ʻano epidermal he ʻulaʻula ma lalo o ke kukui o ka Wood; ʻO ke ʻano dermal he hina hina a ʻulaʻula paha ma lalo o ka maka ʻōlohelohe, a ʻaʻole ʻike ʻia ka ʻokoʻa ma lalo o ka mālamalama o ka Wood. Pono ka hoʻokaʻawale pololei ʻana o ka melasma i ke koho o ka mālama ʻana ma hope.
Ka manawa hoʻouna: Mei-06-2022
