He maʻi ʻili maʻamau ka Chloasma i loaʻa i ka hana lapaʻau. Loaʻa pinepine ia i nā wahine o ka wā hānau keiki, a hiki ke ʻike ʻia i nā kāne i ʻike ʻole ʻia. Hōʻike ʻia ia e ka pigmentation symmetrical ma nā papālina, lae a me nā papālina, ʻo ka hapa nui ma ke ʻano o nā ʻēheu pulelehua. Melemele māmā a ʻeleʻele māmā paha, ʻeleʻele kaumaha a ʻeleʻele māmā paha.
Hiki i nā ʻāpana lāhui liʻiliʻi a me nā lāhui liʻiliʻi ke loaʻa i ka maʻi, akā ʻo nā wahi me ka hoʻolaha nui ʻana o ka UV, e like me ʻAmelika Latina, ʻAsia, a me ʻApelika, ʻoi aku ka nui o ka hanana. Loaʻa ka maʻi i ka hapa nui o nā maʻi i ko lākou mau makahiki 30 a me 40, a ʻo ka hanana i nā makahiki 40 a me 50 he 14% a me 16%. Hoʻomaka mua ka poʻe ʻili māmā, ulu ka poʻe ʻili ʻeleʻele ma hope, ʻoiai ma hope o ka menopause. Hōʻike nā noiʻi mai nā heluna liʻiliʻi ma ʻAmelika Latina i ka hanana o 4% a 10%, 50% i nā wahine hāpai a me 10% i nā kāne.
Wahi a ke kahua o ka laha ʻana, hiki ke hoʻokaʻawale ʻia ka melasma i 3 mau ʻano lapaʻau, me ke alo waena (e pili ana i ka lae, ka hope o ka ihu, nā papālina, a pēlā aku), zygomatic a me mandible, a ʻo nā helu hanana he 65%, 20%, a me 15%, kēlā me kēia. Eia kekahi, ua manaʻo ʻia kekahi mau maʻi ʻili idiopathic, e like me ka idiopathic periorbital skin pigmentation, e pili ana me ka melasma. Wahi a ke kahua o 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 ʻia, ʻo ia hoʻi ke ʻano epidermal ka mea maʻamau, a ʻo ke ʻano hui ʻia ka mea hiki ke loaʻa.Ke kukui lāʻauhe mea kōkua no ka ʻike ʻana i nā ʻano lapaʻau. I waena o lākou, he ʻeleʻele māmā ke ʻano epidermal ma lalo o ke kukui o Wood; he hina māmā a uliuli māmā paha ke ʻano dermal ma lalo o ka maka ʻōlohelohe, a ʻaʻole maopopo ka ʻokoʻa ma lalo o ke kukui o Wood. He mea maikaʻi ka hoʻokaʻawale pololei ʻana o ka melasma i ke koho ʻana o ka lāʻau ma hope.
Ka manawa hoʻouna: Mei-06-2022
