Melanocytic nevushttps://en.wikipedia.org/wiki/Nevus
Melanocytic nevus wani nau'in tumor na melanocytic wanda ya ƙunshi ƙwayoyin nevus. Yawancin nevi suna bayyana a cikin shekaru ashirin na farkon rayuwar mutum. Tare da kusan ɗaya cikin kowane jarirai 100 da aka haifa tare da nevi. Nevi da aka samu wani nau'i ne na neoplasm mai kyau, yayin da ake ɗaukar nevi na haihuwa a matsayin ƙananan lahani ko hamartoma kuma yana iya kasancewa cikin haɗari mafi girma ga melanoma. Benign nevi suna da siffar madauwari ko kwai kuma yawanci ƙanana ne (mafi yawanci tsakanin 1‑3 mm), kodayake wasu na iya girma fiye da girman fensir na yau da kullun (≈5 mm). Wasu nevi suna da gashi.

○ maganin
Ana yin aikin tiyata na Laser don cire ƙananan nevi ta hanyar kwaskwarima. Idan leƙen ya fi girma fiye da 4‑5 mm, ana iya buƙatar cirewar tiyata. A cikin yara ƙanana, nevus mafi girma fiye da 2 mm a girman sau da yawa yana da wuya a cire gaba ɗaya ba tare da tabo ba.
#CO2 laser
#Er-YAG laser
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  • nevus na al'ada (Normal nevus)
  • Becker nevus ― Kafada; wanda ke da girman gashi a kan nevus.
  • Nevus of Ota ― Ya bayyana shuɗi saboda zurfin wurin da ƙwayoyin nevus ke cikin layin dermal. A cikin wannan yanayin na majiyyaci, nevus yana kan conjunctiva. Za a iya cire Ota nevus ta hanyar maganin laser.
  • Compound nevus - gindi. Ƙananan alamun haihuwa na iya girma zuwa manyan nevi tare da shekaru.
  • Intradermal nevus ― nodule mai fitowa.
  • Normal nevus. Hotunan biyu da ke ƙasa su ne intradermal nevus, kuma hotuna uku na sama su ne junctional nevus.
  • Blue nevus ― Saboda zurfin wurin sel nevus, yana bayyana shudi.
  • Intradermal nevus ― Ana yawan ganin shi a fatar kai.
  • Wannan hoton yana nuna raunin nevus. Duk da haka, idan babban raunin ya kasance ƙarami kamar wannan, algorithm ba zai iya yin la'akari da yanayin daidai ba.
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 wani ne melanocytic nevus wanda ko dai yana nan a lokacin haihuwa ko kuma yana bayyana a ƙarshen matakan ƙuruciya. An bayyana Nevus sebaceous a matsayin wurin hamartomatous na rukunin pilosebaceous marar inganci. Anan, mun bayyana yadda muka yi amfani da fasaha na pinhole tare da Erbium:YAG Laser don magance lesions na nevi a cikin marasa lafiya daban-daban.
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
Melanoma wani nau'i ne na tumor wanda ke samuwa lokacin da melanocytes, kwayoyin da ke da alharkin launin fata, sun zama masu ciwon daji. Melanocytes sun samo asali ne daga ƙashin jijiyoyi; wannan yana nufin cewa melanoma na iya haɓaka ba kawai akan fata ba har ma a wasu wuraren da ƙwayoyin jijiyoyi ke ƙaura, kamar cikin hanji da kwakwalwa. Kashi na rayuwa ga marasa lafiya tare da melanoma na farko (mataki na 0) yana da girma a 97%, yayin da ya ragu sosai zuwa kusan 10% ga waɗanda aka gano suna da mataki na 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.