Mongoloid chaw - thaj tsam ntawm daim tawv nqaij nrog hloov pauv pigmentation, los ntawm grey-xiav mus rau xiav-dub. Lawv pom tam sim ntawd tom qab yug me nyuam. Feem ntau, lawv nyob hauv thaj tsam sacral thiab lumbar, feem ntau txav mus rau hauv pob tw. Tsawg zaus, tej pob lossis ntau qhov cim tuaj yeem pom ntawm lwm qhov ntawm lub cev.
Lub chaw Mongoloid hauv cov menyuam yaus tau txais nws lub npe vim yooj yim uas nws pom tsuas yog hauv cov menyuam yug tshiab uas yog haiv neeg Mongoloid. Cov neeg Nyij Pooj, Mongols, Indonesians, Eskimos thiab lwm haiv neeg uas muaj tawv nqaij daj ua rau cov menyuam yaus muaj xim daj.
European tsis muaj cov chaw no. Tsuas yog 1% ntawm cov menyuam yug tshiab ntawm haiv neeg dawb muaj cov cim zoo li no. Txawm li cas los xij, qhov no tsuas yog txhais tau tias ib tus poj koob yawm txwv yog tawv daj.
Raws li kev txheeb cais, txhua 200th Asian yog tus nqa ntawm cov noob tshwj xeeb. Cov noob no belongs rau ib tug neeg uas nyob ib ncig ntawm lub xyoo pua 12th. Nws tau raug hu ua "gene of Genghis Khan", vim nws ntseeg tias nyob hauv pebhnub nyob txog 16 lab tus tib neeg uas yog cov xeeb leej xeeb ntxwv nyob deb ntawm tus yeej loj no.
Kuriously, qhov chaw Mongoloid tsis muaj lub ntsiab lus. Nws tsuas yog pom tau tias yog ib qho lus qhia rau cov kws tshawb fawb uas tab tom tshawb xyuas qhov tsis meej ntawm evolution. Nws tsis muaj kev cuam tshuam rau kev noj qab haus huv, lub cev nqaij daim tawv, lossis lub cev yam ntxwv ntawm tus neeg.
Cov teb chaws sib txawv pom pom cov chaw sib txawv. Feem ntau xav txog qhov no yog lub cim los saum ntuj los, paub meej tias tus me nyuam yeej yog nws cov neeg. Tab sis muaj cov neeg uas cov qhab nia zoo li no suav tias yog kev txaj muag.
Yog vim li cas
Cov xim tawv nqaij ncaj qha nyob ntawm cov xim xim hu ua melanocytes. Nws yog cov hlwb uas muaj lub luag haujlwm rau cov xim ntawm tib neeg cov tawv nqaij. Nws yog kwv yees hais tias rau txhua square millimeter ntawm lub epidermis muaj txog 2 txhiab melanocytes. Tab sis cov xim tsis yog nyob ntawm seb muaj pes tsawg lub hlwb, tab sis tsuas yog nyob ntawm lawv cov dej num. Kev ua haujlwm tsis zoo ntawm melanocytes ua rau muaj ntau yam kab mob xws li halonevus, vitiligo thiab lwm yam.
Nyob rau hauv cov neeg uas yog haiv neeg dawb, zus tau tej cov melanin tsawg heev, cell activation tshwm sim tsuas yog muaj zog raug tshav ntuj. Qhov tshwm sim ntawm qhov kev ua no yog sunburn. Cov tawv nqaij dub thiab daj ua cov xim tsis tu ncua, uas yog vim li cas cov neeg nyob hauv Africa, Australia thiab Asia muaj xim uas qhia txog lawv cov haiv neeg.
Thaum tib neeg embryo txhim kho, melanocytes tsiv los ntawmtob txheej ntawm daim tawv nqaij mus rau lub ntsej muag. Cov kws tshawb fawb qhia tias qhov tshwm sim ntawm qhov chaw yog vim qhov kev hloov pauv tsis tiav. Tej zaum, qee qhov ntawm melanocytes tsis tuaj rau saum npoo, tab sis tseem nyob hauv qhov tob ntawm daim tawv nqaij. Cov xim uas tsim los ntawm lawv ua rau Mongoloid chaw.
Yog li, nws tau pom tseeb tias yog vim li cas rau qhov pom ntawm cov cim yog cov kab mob ntawm txoj kev loj hlob ntawm lub embryo, uas, dhau los, yog vim muaj cov noob tshwj xeeb.
Zoo
Dark mark - congenital nevus. Feem ntau, qhov chaw Mongoloid nyob rau hauv ib tug me nyuam mos muaj ib tug xiav-grey xim, zoo li ib tug bruise. Qee zaum cov pob no yog xiav-dub lossis xiav-xim av. Ib qho tshwj xeeb ntawm cov pob no yog suav tias yog cov xim tsis sib xws thoob plaws hauv cheeb tsam nrog cov xim hloov pauv.
Cov duab ntawm qhov chaw tuaj yeem sib txawv kiag li, feem ntau tsis xwm yeem. Qhov ntau thiab tsawg kuj tsis muaj cov qauv - lawv txawv ntawm specks uas tsis pub tshaj qhov loj ntawm ib npib mus rau qhov loj me me npog tag nrho lub nraub qaum.
Qhov chaw Mongoloid hauv tus menyuam mos feem ntau yog tsom rau sab nraub qaum lossis sacrum. Tab sis lwm qhov chaw ntawm kev tshwm sim kuj tseem muaj peev xwm: qhov tshwm sim ntawm cov pob txha ntawm ob txhais ceg, nraub qaum, forearms thiab txawm txhais tes yog paub. Tsis tshua muaj cov chaw tsiv teb tsaws chaw, maj mam txav, piv txwv li, los ntawm lub pob tw mus rau sab nraub qaum thiab nraub qaum.
Feem ntau muaj ib qho stains, tab sis kuj muaj ntau yam cim.
Tam sim tom qab yug me nyuam, "blots" darken, tab sis dhau sijhawmua paler thiab me me. Hauv yuav luag txhua tus menyuam yaus, thaum muaj hnub nyoog 5 xyoos, daim tawv nqaij tau txais cov xim sib xws. Tsis tshua muaj, cov cim tuaj yeem pom hauv cov tub ntxhais hluas. Mongoloid tej chaw nyob rau hauv ib tug neeg laus nyob tsuas yog hais tias muaj ntau ntawm lawv nyob rau hauv thaum yau, thiab nyob rau hauv atypical chaw.
Diagnosis
Pom tau qhov chaw tsis nkag siab ntawm daim tawv nqaij ntawm tus menyuam, nws tsim nyog hu rau tus kws kho mob dermatologist. Tus kws kho mob yuav ua ib qho kev ntsuam xyuas tshwj xeeb kom paub tseeb tias cov no tsis yog pathological pigmented nevi, vim qee yam ntawm lawv cov ntau yam tuaj yeem ua rau melanoma-tshuaj lom. Yog tias pom ib qho ntawm cov kab txawv no, nws yuav tsum tau saib xyuas los ntawm kws kho mob dermatologist thiab tus kws kho mob oncologist.
Kom paub qhov txawv ntawm Mongoloid qhov chaw los ntawm lwm hom nevus, siacopy thiab dermatoscopy yog ua. Yog tias qhov kev kuaj mob xav tau kev qhia meej, tus kws kho mob tuaj yeem xaj kom kuaj pom qhov chaw pigmented.
Kev kho mob
Yog tias qhov kev kuaj mob los ntawm kws kho mob dermatologist dhau lawm thiab nws paub tseeb tias qhov kev kuaj mob, qhov stain tsis xav tau kev kho mob. Tsis tas yuav sau npe nrog tus kws tshaj lij. Qhov chaw Mongoloid tsis ua rau muaj kev cuam tshuam thiab ploj mus tom qab ob peb xyoos.
Kev Tiv Thaiv
Vim "Vajtswv lub cim" tsis yog kab mob, tsis muaj tshuaj kho. Qhov kev cia siab rau xws li nevus yog qhov zoo. Rau tag nrho lub sijhawm ntawm kev soj ntsuam ntawm cov pob no, tsis yog ib qho xwm txheej ntawm nws cov degeneration rau hauv melanoma tau sau npe. Vim li no, tsis tas yuav muaj kev saib xyuas kho mob.
Feem ntau, qhov chaw ploj ntawm nws tus kheej thaum muaj tsib xyoos. Tab sis txawm nyob rau hauv cov xwm txheej tsis tshua muaj,Thaum nws tseem nyob rau lub neej, nws tsis muaj kev cuam tshuam rau kev noj qab haus huv lossis kev ua haujlwm ntawm lub cev.
Kev xav
Mongoloid chaw, daim duab uas nrog rau kab lus no, muaj lub ntsiab lus sib txawv rau cov neeg sib txawv. Piv txwv li, hauv Brazil lawv xav tias nws yog ib qho kev txaj muag uas muaj cov cim zoo li no, cov niam txiv ua tib zoo zais qhov tseeb txawm tias lawv cov txheeb ze ze tshaj plaws, tsis txhob hais txog cov neeg txawv tebchaws. Tsis tas li ntawd, xim ntawm qhov chaw ntawm cov neeg nyob hauv Brazil yog ze rau ntsuab, yog li ntawd, yog tias ib tug nevus pom nyob rau hauv ib tug neeg laus, nws yuav raug thuam li "ntsuab-rov qab".
Rau ntau haiv neeg, qhov stain yog "Buddha's slap", "Vajtswv hnia". Nws ntseeg hais tias ib tug me nyuam nrog xws li ib tug cim yuav zoo siab, raws li Vajtswv (Buddha, Allah) saib xyuas nws. Thiab, tau kawg, qhov no yog lub sijhawm ntxiv kom paub tseeb tias tus menyuam yog tus sawv cev ntawm qee tus neeg.
