Halo nevushttps://en.wikipedia.org/wiki/Halo_nevus
Ko Halo nevus he nevus e karapotia ana e te whakakāri i te depigmentation. I te mea he mea whakapaipai noa te Halo nevus, kāore he maimoatanga e hiahiatia i te nuinga o ngā kērē, ā, kāore he tohu o ngā turoro.

Ahakoa he kore kino te Halo nevus i te nuinga o ngā ahuatanga, he mea nui kia aro turuki i te whiu i ia wā. Mēnā he rerekē te āhua o te whiu, ka pā atu rānei ki te mamae, me toro atu ki te tākuta kia kore e taea te mate melanoma.

Kei te tata ki te 1 % o te taupori whānui te Halo nevus, ā, ka kitea he nui ake te kaha o te hunga whai vitiligo, mate puku‑puku, mate Turner rānei. Ko te tau toharite o te timatanga kei roto i ngā tau taiohi o te tangata.

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References Halo nevus - Case reports 25362030
He kōtiro e whitu tau te pakeke i tukuna he tohu whānau pango ki tōna rāe, he whakakāi mā i te taha o ngā marama e toru kua hipa.
A 7-year-old girl presented with a blackish birthmark on her forehead, which had gotten a white ring around it over the past three months.