Uluhlu lwamaseli kwindawo ecwangcisiweyo ye-epidermis, ebizwa ngokuthi i-melanocytes, ivelisa i-brown-black black pigment (melanin) ebonisa umbala wesikhumba neenwele. I-Melanin inceda kwakhona ukukhusela kwimimitha ewonakalisa ilanga. Xa iiseli zikhula ngendlela elawulwayo, i-lesion ephumela kumbi kwaye ibizwa ngokuba yi-mole okanye i-nevus. Ngamanye amaxesha, nangona kunjalo, i-melanocytes ikhula ngaphandle kokulawulwa kwaye ibe ngumhlaza we-melanoma kunye nomhlaza. Ukuba ubona i-mole elitsha okanye i-mole eguqula ukubonakala kwayo, qha ga mshelana nodokotela wakho.
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Ukusasazwa ngokusesikweniUhlobo oluqhelekileyo lwe-melanoma. Ngokuqhelekileyo isicaba kunye nesimo esingaqhelekanga ngesimo kunye nombala, kunye nemithunzi ehlukeneyo emnyama nebomdaka. Kungenzeka nakweyiphi na indawo okanye indawo yomzimba kwaye ixhaphake kwiCaucasians.
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Ikhulile, i-Multi-colorIzicubu ze-Melanoma zidla ngokubomvu, ziluhlaza kwaye ziluhlaza okwesibhakabhaka. Eli sesilonda sinemibala eninzi.
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Ikhulile, iLesion yomnyamaPhawula ukuba khona kwemibala emininzi kule melanoma lesion. Oku kufaneka kwe-melanoma.
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EzibiUnyango lwe-melanoma enokuxhomekeka kuxhomekeke kwiimeko ezininzi, kubandakanywa nempilo epheleleyo yesigulane nokuba ngaba umhlaza usasazeke kwii- lymph nodes okanye kwezinye izitho. Ukuba ubanjwe ekuqaleni, i-melanoma inokuphiliswa. Umngcipheko wesifo somhlaza uya kubuya ukhula kunye nobunzulu be-tumor - izibilini ezinzulu ziyakwazi ukubuyela. Ukuba umhlaza usasazeke kwi-lymph nodes, kukho ithuba elikhulu lokuba i-melanoma iza kubuya. Kwi-melanoma eye yazeka kwezinye iisculi kunye nezitho, izinga lokunyanga liphantsi.
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Kwi-FingernailI-Melanomas phantsi kwe-fingernail ibonakala ngathi i-black or blue blue discoloration. Oku kubizwa ngokuthi "i-acral lentiginous melanoma" kwaye yindlela encinane ye-melanoma. Ngokuqhelekileyo kuvela kwiintendelezo, kwiintsimbi, okanye phantsi kwezipikili kwaye ziqheleke kwi-Afrika-baseMerika.
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Lentigo MalignaI-Lentigo maligna melanoma (ngamanye amaxesha kuthiwa yi-Hutchinson's freckle) ngokuqhelekileyo ivela kubantu asebekhulile kwaye ibonakaliswe ngamathala adibeneyo, ama-mottled, ama-brown-brown-like spots nemida engavumelekanga. Ezi zilonda zivame ukubonakala ebusweni okanye kwezinye iindawo ezibonakaliswe ngelanga kwaye ngokuqhelekileyo zandisa ngokukhawuleza kwiminyaka emi-5 ukuya kwe-15 ngaphambi kokuba zingene.
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KwiClake Level IIIIcandelo likaClak lichaza ukuba kude kangakanani i-melanoma eye yangena esikhumbeni. Le nqanaba le-melanoma yezinga le-3 apho umhlaza uquka ininzi yesermamu.
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IClake Level IVLo ngumzekelo we- Clark level IV i-melanoma apho umhlaza usasazeke kwi-epidermis ngokusebenzisa i-dermis ephezulu kwaye ibandakanya isermisi esezantsi.
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KwiNeckLe melanoma entanyeni inemibala eyahlukahlukeneyo kunye nomda ongasemthethweni kunye nemida engavumelekanga. Ukuxhamla kwi-melanoma ichanekileyo ngokuchazwa ubunzulu bayo obulinganiselwa emva kokukhishwa.