Melanocytic nevus - Nevus Melanocytichttps://en.wikipedia.org/wiki/Nevus
Nevus Melanocytic (Melanocytic nevus) dia karazana fivontosana melanocytic izay misy sela nevus. Ny ankamaroan’ny nevi dia miseho mandritra ny roapolo taona voalohany amin’ny fiainan’ny olona. Misy zaza iray isaky ny 100 teraka manana nevi. Ny nevi azo dia karazana neoplasma malemy, raha ny nevi hatrany am‑bohoka kosa dia heverina ho tsy fahampiana kely na hamartoma ary mety atahorana ho voan’ny melanoma. Ny nevus malemy dia boribory na oval ary matetika kely (eo anelanelan’ny 1‑3 mm), na dia mety ho lehibe kokoa noho ny haben’ny pensilihazo mahazatra (5 mm) aza ny sasany. Ny nevi sasany dia manana volo.

○ Fitsaboana
Ny fandidiana laser dia matetika atao mba hanesorana ny nevi kely. Raha lehibe noho ny 4‑5 mm ny habeny, dia mety ilaina ny fandidiana. Amin’ny ankizy kely, ny nevus lehibe kokoa noho ny 2 mm dia matetika sarotra esorina tanteraka tsy misy scarring.
#CO2 laser
#Er‑YAG laser
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  • Ny nevus mahazatra
  • Becker nevus ― Soroka; miavaka amin’ny fitomboan’ny volo eo amin’ny nevus.
  • Nevus of Ota – miseho manga noho ny fisian’ny sela nevus any amin’ny sosona hoditra lalina. Amin’ity tranga ity, ny nevus dia eo amin’ny conjunctiva. Ny Nevus of Ota dia azo esorina amin’ny alàlan’ny fitsaboana laser.
  • Compound nevus – Vody. Ny mariky ny fahaterahana kely dia mety hitombo ho nevi lehibe amin’ny taona.
  • Intradermal nevus – endriky ny vonga mivohitra.
  • nevus mahazatra. Ireo sary roa etsy ambany dia intradermal nevus, ary ireo sary telo etsy ambony dia junctional nevus.
  • Blue nevus ― Noho ny toerana lalina misy ny sela nevus, dia miseho manga izy.
  • Intradermal nevus ― Matetika hita eo amin’ny hodi‑doha.
  • Ity sary ity dia manondro fery nevus. Na izany aza, raha kely toy izany ny lesoka lehibe, dia mety tsy ho afaka maminavina tsara ny toe-javatra ny algorithm.
References Effective Treatment of Congenital Melanocytic Nevus and Nevus Sebaceous Using the Pinhole Method with the Erbium-Doped Yttrium Aluminium Garnet Laser 25324667 
NIH
Ny Congenital melanocytic nevus dia nevus melanocytic izay miseho na amin’ny fotoana nahaterahana na mandritra ny dingana farany amin’ny fahazazana. Nevus sebaceous dia nofaritana ho toerana hamartomatous ao amin’ny vondrona pilosebaceous, simba ara‑embryolojika. Eto izahay dia mamaritra ny fomba nampiasanay ny teknika pinhole tamin’ny laser Erbium:YAG mba hitsaboana ny nevi amin’ny marary samihafa.
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
Ny melanoma dia karazana fivontosana izay miseho rehefa lasa homamiadana ny melanocytes, sela tompon’andraikitra amin’ny lokon’ny hoditra. Ny melanocytes dia avy amin’ny neural crest. Midika izany fa tsy eo amin’ny hoditra ihany no mety hivoatra ny melanoma, fa any amin’ny faritra hafa izay ifindran’ny sela neural crest, toy ny taova mivalona amin’ny gastrointestinalina sy ny atidoha. Ny taham-pahavelomana ho an’ny marary voan’ny melanoma amin’ny dingana voalohany (dingana 0) dia ambony, 97 %, raha toa ka midina be ho 10 % ho an’ireo voan’ny aretina efa mandroso (stage 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.