Melanocytic nevus - Nevus Melanocytichttps://en.wikipedia.org/wiki/Nevus
I-Nevus Melanocytic (Melanocytic nevus) luhlobo lwethumba lwe-melanocytic oluqulethe iiseli ze-nevus. Uninzi lwe-nevi lubonakala ngexesha leminyaka engamashumi amabini yokuqala yobomi bomntu. Ngokumalunga nomntwana omnye kwi-100, ngalinye elizalwa ne-nevi. I-nevi efunyenweyo luhlobo lwe-benign neoplasm, ngelixa i-congenital nevi ithathwa njenge-malformation encinci okanye i-hamartoma, kwaye inokuba kumngcipheko ophezulu we-melanoma. I-Benign nevus ziyi-spherical okanye i-oval, kwaye idla ngokuba zincinci (ngokubanzi phakathi kwe-1‑3 mm), nangona ezinye zinokuba nkulu kunobukhulu be-eraser yepensile eqhelekileyo (5 mm). Ezinye iinevi zineenwele.

○ Unyango
Utyando lwe-Laser luqhele ukwenziwa ukususa i-nevi encinci ngokuthambisa. Ukuba ubungakanani bukhulu kune-4‑5 mm, ukukhutshwa ngotyando kunokufuneka. Kubantwana abancinci, i-nevus enkulu kuno-2 mm ngobukhulu ihlala kunzima ukuyisusa ngokupheleleyo ngaphandle kokulimala.
#CO2 laser
#Er-YAG laser
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  • Nevus eqhelekileyo
  • Becker nevus (Igxalaba) ibonakala ngokukhula kweenwele kwi‑nevus.
  • Nevus of Ota ― Ibonakala ngombala oluhlaza okwesibhakabhaka ngenxa yendawo enzulu yeeseli ze-nevus kumaleko e-dermal. Kule meko yesigulane, i-nevus ifumaneka kwi-conjunctiva. I‑Nevus of Ota ingasuswa ngonyango ye‑laser.
  • Compound nevus – Impundu. Iimpawu zokuzalwa ezincinci zinokukhula zibe yi-nevi enkulu ngokuhamba kwexesha.
  • Intradermal nevus – ukumila kweqhuqhuva eliphumayo.
  • Nevus eqhelekileyo. Le mifanekiso mibini engezantsi ibonisa i‑intradermal nevus, kwaye le mifanekiso emithathu engasentla ibonisa i‑junctional nevus.
  • Blue nevus ― Ngenxa yendawo enzulu yeeseli ze-nevus, ibonakala iblu.
  • Intradermal nevus ― Iqhele ibonakala entloko.
  • Lo mfanekiso ubonisa isilonda se-nevus. Nangona kunjalo, ukuba isilonda esiphambili sincinci njengale, i-algorithm ayinakukwazi ukuqikelela imeko ngokuchanekileyo.
References Effective Treatment of Congenital Melanocytic Nevus and Nevus Sebaceous Using the Pinhole Method with the Erbium-Doped Yttrium Aluminium Garnet Laser 25324667 
NIH
Congenital melanocytic nevus (i-melanocytic nevus) yindawo eyenzeka ekuzalweni okanye evela kumanqanaba okugqibela ebusana. Nevus sebaceous (i-nevus sebaceous) ichazwa njengendawo ehamarttomatous ye‑unit ye‑pilosebaceous eneziphene. Apha, sichaza indlela esisebenzise ngayo ubuchule bombhobho nge‑Erbium:YAG laser ukunyanga i‑nevi kwizigulana ezahlukeneyo.
Congenital melanocytic nevus (CMN) is a melanocytic nevus that is either present at birth or appears during the latter stages of infancy. Nevus sebaceous has been described as the hamartomatous locus of an embryologically defective pilosebaceous unit. Here, we describe how we used the pinhole technique with an erbium-doped yttrium aluminium garnet (erbium : YAG) laser to treat nevi lesions in different patients.
 Malignant Melanoma 29262210 
NIH
I-melanoma luhlobo lwethumba olwenziwa xa i-melanocytes, iiseli ezinoxanduva lombala wolusu, ziba nomhlaza. Ii-melanocytes ivela kwi-neural crest. Oku kuthetha ukuba i-melanoma ayinakukhula kuphela eluswini, kodwa nakwezinye iindawo apho iiseli ze-neural crest zifuduka, njengephecana lesisu kunye nengqondo. Izinga lokusinda kwizigulane ezine-melanoma yesigaba sokuqala (inqanaba le-0) liphezulu, lifikelela kwi-97 %, ngelixa lelo lehlile kakhulu, liba malunga ne-10 % kwabo abafunyaniswa ukuba banesifo senqanaba eliphezulu (inqanaba IV).
A melanoma is a tumor produced by the malignant transformation of melanocytes. Melanocytes are derived from the neural crest; consequently, melanomas, although they usually occur on the skin, can arise in other locations where neural crest cells migrate, such as the gastrointestinal tract and brain. The five-year relative survival rate for patients with stage 0 melanoma is 97%, compared with about 10% for those with stage IV disease.