Ota nevushttps://en.wikipedia.org/wiki/Nevus_of_Ota
Ota nevus ose hyperpigmentation e tupu i luga o foliga, e masani ona aliali i luga o le paʻepaʻe o mata. E tupu foi i luga o le muaulu, isu, alafau, itulagi periorbital, ma le malumalu. E toetoe a faalima taimi e sili atu ai le afaina o tamaitai nai lo alii, ma e seasea i tagata papaʻe. Ota nevus atonu e le'i fanau mai, ma e ono aliali mai pe a uma le talavou.
O le faʻaaogaina o le Q-switched 1064 nm laser ua lipotia mai e manuia i le togafitia o nevus o Ota.

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☆ I le 2022 Stiftung Warentest i'uga mai Siamani, o le fa'amalieina o tagata fa'atau i ModelDerm sa na'o sina maualalo ifo nai lo fa'atalanoaga telemedicine totogi.
  • E mafai ona aafia ai le vaega conjunctival.
  • QS1064 togafitiga laser e masani lava ona maua ai ni taunuuga lelei.
References Nevus of Ota and Ito 32809409 
NIH
Ota Nevus o se fa'apogisa fa'apogisa fa'apouliuli fa'apitoa o lo'o fa'ata'amilo i le vaega o neula trigeminal, e tele lava ina a'afia ai itu o mata e tautuaina e le vaega muamua ma le lua o lenei neura. O lenei tulaga, e ta'ua foi o le ocular dermal melanosis, e mafua ai le lanu efuefu-lanumoana ona o melanocytes ua pu'eina. E masani ona aliali i le tasi itu o foliga ma e ono aofia ai le mata, paʻu o foliga, ma o nisi taimi o le taualuga o le gutu. O tagata e maua i lenei ma'i e maualuga atu le avanoa e atia'e ai le melanoma mata ma le glaucoma. Nevus o Ito e tutusa ae aafia ai vaega neura eseese.
Nevus of Ota is a benign melanosis that primarily involves the region of the trigeminal nerve distribution. The first and second divisions of the trigeminal nerve, namely the ophthalmic V1 and the maxillary V2 are most commonly involved. There is associated hyperpigmentation of the eye. Nevus of Ota is also known as ocular dermal melanosis. The characteristic gray-blue hyperpigmentation occurs due to entrapped melanocytes. Unilateral presentation is more common. The melanocytes are entrapped leading to gray-blue hyperpigmentation of the conjunctiva and sclera along with ipsilateral facial skin. There is an increased risk of uveal melanoma and glaucoma in these cases. Palatal involvement may also occur. Nevus of Ito is very similar to nevus of Ota except it differs in the territory of distribution. It was described by Minor Ota in 1954. It involves the distribution territory of lateral cutaneous brachial nerves of the shoulder and posterior supraclavicular nerves. Both of these diseases share similar pathophysiology.
 Dermal Melanocytosis 32491340 
NIH
Congenital dermal melanocytosis ua ta'ua fo'i o le nofoaga Monokolia. Ose ituaiga fa'ailoga masani e va'aia i pepe fou. E aliali mai e pei o ni pa'u efuefu-lanumoana i luga o le pa'u mai le fanau mai po o se taimi mulimuli ane. O nei fa'ailoga e masani ona maua i le pito i lalo ma papa, ma tauau o le isi nofoaga masani. E sili atu ona masani i tamaiti Asia ma Black, e aʻafia tutusa uma tama ma teine. E masani lava, latou te mou ese atu i latou lava i le 1 i le 6 tausaga ma e masani lava e le manaʻomia ni togafitiga aua e tele lava e le afaina.
Congenital dermal melanocytosis, also known as Mongolian spot or slate gray nevus, is one of many frequently encountered newborn pigmented lesions. It is a type of dermal melanocytosis, which presents as gray-blue areas of discoloration from birth or shortly thereafter. Congenital dermal melanocytosis is most commonly located in the lumbar and sacral-gluteal region, followed by shoulders in frequency. They most commonly occur in Asian and Black patients, affect both genders equally, and commonly fade by age 1 to 6 years old. Congenital dermal melanocytoses are usually benign and do not require treatment.