Qee tus menyuam mos tau kuaj pom tias muaj Mongolian qhov chaw tom qab yug menyuam. Nws yog dab tsi? Qhov chaw Mongolian yog cov tawv nqaij pigmentation uas muaj qhov tsis sib xws lossis sib npaug thiab cov xim grey-xiav. Feem ntau, qhov tshwm sim no nyob hauv thaj tsam lumbosacral. Qhov tseeb, pigmentation yog congenital nevus. Thaum kuaj mob neoplasm, tshwj xeeb yog qhov tseem ceeb rau nws qhov sib txawv ntawm melanoma- phom sij. Raws li kev xyaum qhia, Mongolian qhov chaw ploj ntawm nws tus kheej tom qab 4-5 xyoos.
Vim li cas thiaj hu tias
Vim li cas qhov pigmentation hu ua "Mongolian chaw"? Tseeb tiag, qhov zais cia yog dab tsi? Qhov tseeb yog tias 90% ntawm cov menyuam yaus ntawm haiv neeg Mongoloid tau yug los nrog cov cim zoo sib xws. Qhov kev pheej hmoo yog Ainu, Eskimos, Khab Khab, Indonesians, Nyiv, Kauslim, Suav thiab Nyab Laj. Tsis tas li ntawd, qhov chaw Mongolian feem ntau tshwm sim hauv cov menyuam yaus ntawm haiv neeg Negroid. Raws li rau Caucasians, xws li neoplasms muaj nyob rau hauv lub cev tsuas yog 1% ntawm cov menyuam yug tshiab.
Mongolian qhov chaw feem ntau nyob hauv lub sacrum. Muaj ntau lub npe rau xws li pigmentation. Feem ntau lawv muaj nws ua "qhov chaw dawb huv".
Tus yam ntxwv ntawm tus kab mob
Vim li cas Mongolian qhov chaw tshwm hauv tus menyuam yug tshiab? Cov tawv nqaij muaj ob peb txheej sib txuas: dermis thiab epidermis. Pigmentation nyob ntawm seb muaj pes tsawg lub hlwb tshwj xeeb muaj nyob hauv tib neeg cov tawv nqaij, nrog rau lawv cov haujlwm. Melanocytes pom nyob rau hauv cov epidermis thiab tsim cov xim. Nws yog tus uas cuam tshuam qhov ntxoov ntxoo ntawm daim tawv nqaij.
Kev tshawb fawb qhia tias 1 mm2 ntawm cov epidermis tsis muaj ntau tshaj 2000 melanocytes. Lawv tus lej tsuas yog 10% ntawm tag nrho cov xov tooj ntawm tes. Txawm li cas los xij, cov xim ntawm daim tawv nqaij cuam tshuam los ntawm kev ua haujlwm ntawm melanocytes. Ntau yam kev cuam tshuam hauv kev ua haujlwm ntawm cov hlwb tuaj yeem ua rau kev loj hlob ntawm cov kab mob xws li halonevus, vitiligo, thiab lwm yam.
Raws li cov neeg uas muaj tawv nqaij dawb, melanin hauv lawv lub cev raug tsim tsawg dua. Feem ntau qhov no tshwm sim tsuas yog nyob rau ntawm lub hnub ci. Yog li ntawd, daim tawv nqaij yog npog nrog ib tug tan. Hauv ib tus neeg ntawm haiv neeg dub lossis daj, melanin yog tsim los tas li. Tias yog vim li cas daim tawv nqaij thiaj li ntxoov ntxoo.
Ua rau pigmentation
Mongolian qhov chaw hauv tus menyuam yug tshiab tsis tshwm sim thaum yug. Thaum lub embryo tsim nyob rau hauv lub tsev menyuam, melanocytes migrate mus rau hauv lub epidermis los ntawm ectoderm. Raws li cov kws tshawb fawb, Mongolian chaw yog tsim nyob rau hauvqhov tshwm sim ntawm cov txheej txheem tsis tiav ntawm kev txav hlwb nrog cov xim. Hauv lwm lo lus, tom qab yug menyuam, melanocytes tseem nyob hauv dermis. Cov xim uas tsim los ntawm cov hlwb no, thiab ua rau muaj kev hloov ntawm cov xim ntawm daim tawv nqaij. Raws li qhov tshwm sim ntawm qhov tshwm sim no, ib qho chaw tshwm rau ntawm tus menyuam daim tawv nqaij uas muaj grey-xiav tint.
Cov kws tshawb fawb tau los xaus tias qhov chaw ntawm Mongolian tshwm sim vim muaj cov kab mob me me ntawm kev loj hlob ntawm embryonic, uas yog vim muaj cov noob tshwj xeeb hauv lub cev ntawm tus menyuam hauv plab.
kho mob daim duab ntawm pigmentation
Qhov chaw Mongolian, daim duab uas tau nthuav tawm hauv tsab xov xwm, yog tsim nyob rau hauv thaj tsam ntawm lub sacrum thiab zoo li qhov nqaij tawv. Xws li pigmentation yog cais raws li congenital nevi. Feem ntau, cov stain muaj grey-xiav tint, tab sis qee zaum nws tuaj yeem tig xiav-xim av lossis xiav-dub.
Ntawm cov tsos mob, nws yog ib qho tsim nyog ua kom pom cov xim sib txawv ntawm txhua qhov chaw ntawm pigmentation. Raws li rau qhov chaw configuration, nws yuav txawv kiag li. Lub nevus tuaj yeem yog puag ncig lossis oval. Txawm li cas los xij, feem ntau qhov chaw Mongolian muaj qhov tsis zoo. Pigmentation qhov ntau thiab tsawg kuj txawv. Nws tuaj yeem yog ib qho chaw loj lossis ntau qhov me me.
Localization ntawm Mongolian chaw
Nyob rau hauv ib tug me nyuam, qhov chaw Mongolian thaum yug tuaj tsis tau tsuas yog nyob rau hauv lub sacrum. Feem ntau, pigmentation tshwm nyob rau sab nraub qaum thiab pob tw, nyob thaj tsam loj ntawm daim tawv nqaij. Tau kawg, ntau tus menyuam yug tshiab muaj xiavcov pob qij txha yog localized hauv coccyx thiab sab nraub qaum. Txawm li cas los xij, muaj cov xwm txheej thaum thaj chaw ntawm daim tawv nqaij ntawm lub hauv pliaj, nraub qaum, ob txhais ceg thiab lwm qhov ntawm lub cev tau raug pigmentation.
Nyob hauv qee cov menyuam yaus, qhov chaw Mongolian tuaj yeem hloov qhov chaw. Hauv qee lub sijhawm, pigmentation hloov mus rau hauv pob tw lossis mus rau sab nraub qaum.
Puas ploj lawm?
Nyob rau hauv cov menyuam yug tshiab, qhov chaw Mongolian muaj xim ci. Txawm li cas los xij, tom qab ib ntus, nws dhau los ua dimmer thiab maj mam pib ploj mus. Nyob rau tib lub sijhawm, pigmentation pib txo qhov loj me. Nws yog ib nqi sau cia hais tias nyob rau hauv feem ntau lub Mongolian qhov chaw disappears ntawm nws tus kheej. Qhov no tshwm sim 5 xyoos tom qab pom cov pigmentation ntawm daim tawv nqaij ntawm tus menyuam mos.
Nyob rau qee kis, qhov chaw Mongolian tseem nyob thiab tsis ploj mus txog thaum hluas. Nws yog ib nqi sau cia hais tias nyob rau hauv cov me nyuam uas nws pigmentation yog localized nyob rau hauv atypical qhov chaw, qhov tsis xws luag yuav nyob twj ywm rau lub neej. Qhov no kuj siv tau rau cov rooj plaub no thaum Mongolian chaw muaj ntau qhov chaw.
Txoj kev kuaj mob
Yog tias pom cov xim pigment ntawm daim tawv nqaij ntawm tus menyuam, ces ua ntej ntawm tag nrho nws yog tsim nyog nrhiav kev pab tswv yim los ntawm tus kws kho mob tshwj xeeb - kws kho hniav. Tus kws kho mob yuav tsum ua qhov kev kuaj mob sib txawv. Qhov no yuav txiav txim siab seb pigmentation yog dab tsi: ib qho chaw Mongolian lossis lwm hom pigmented nevi. Tom qab tag nrho, lwm yam neoplasms tsis suav nrog. Qhov chaw Mongolian tuaj yeem yuam kev rau nevus ntawm Ota, xiav nevus, plaub haupigmented nevus thiab lwm yam. Tag nrho cov neoplasms no yog melanoma-kev phom sij thiab txhua lub sijhawm tuaj yeem degenerate mus rau malignant sawv daws yuav. Yog hais tias xws li nevi muaj nyob rau ntawm tus me nyuam daim tawv nqaij, ces nws yuav tsum tau sau npe tsis tau tsuas yog nrog ib tug kws kho mob dermatologist, tab sis kuj nrog oncologist.
Yuav kom kuaj tau qhov tseeb, ntau qhov kev tshawb fawb tau sau tseg. Cov npe no suav nrog:
- Dermatoscopy. Nyob rau hauv cov ntaub ntawv no, lub neoplasm yog ua tib zoo kawm nyob rau hauv ntau magnification.
- Siacopy. Nov yog spectrophotometric scan ntawm thaj chaw pigmented ntawm daim tawv nqaij.
- Rau qhov kev kuaj pom tseeb dua, kuaj pom qhov chaw tuaj yeem ua tau. Txoj kev no feem ntau yog siv los txheeb xyuas cov kab mob ntawm qhov sib txawv me ntsis, piv txwv li, nrog warts, syringoma, nodular pruritus, thiab lwm yam.
Kev kho thiab tiv thaiv
Tom qab kuaj tag nrho thiab kuaj mob, tus kws kho mob dermatologist yuav tsum tau sau tshuaj kho kom txaus. Yog hais tias pigmentation ntawm daim tawv nqaij yog ib qho chaw Mongolian, ces kev kho tsis tau ua. Ib tug menyuam uas muaj kev hloov pauv no yuav tsum tau sau npe nrog tus kws kho mob tshwj xeeb. Cov menyuam yaus uas muaj pigmentation yuav tsum tau kuaj ntau yam tsawg kawg ib xyoos ib zaug.
Nco ntsoov tias qhov chaw Mongolian tsis muaj kab mob. Raws li txoj cai, pigmentation ploj ntawm nws tus kheej thiab tsis ua rau tsis xis nyob. Kev tiv thaiv hauv qhov no kuj tseem tsis tau ua.
Huab cua
Yog thaum yug me nyuam muaj ib qho chaw Mongolian ntawm lub coccyx lossis ntawm lub pob tw, ceskoj yuav tsum tsis txhob ntshai. Qhov kev cia siab yog qhov zoo nyob rau hauv feem ntau. Cov kev tshawb fawb qhia tias cov xwm txheej ntawm degeneration ntawm cov pigmentation rau hauv melanoma tseem tsis tau sau tseg. Rau tib lub laj thawj, qhov chaw Mongolian tsis xav tau kev kho mob. Tsib xyoos tom qab pib, pigmentation yuav ploj mus. Tsuas yog qee zaus nws pheej mus txog thaum hluas lossis tseem nyob hauv lub neej. Qhov chaw Mongolian tsis ua rau tsis xis nyob thiab tsis thab tus menyuam.
