Becker nevushttps://en.wikipedia.org/wiki/Becker's_nevus
Becker nevus ndi matenda a khungu omwe amakhudza kwambiri amuna. Nevus nthawi zambiri imawonekera pa nthawi yotcha msinkhu. Imayamba kuoneka ngati mtundu wosakhazikika pamphuno kapena pa mtunda wa mkono, ndipo imakula mosakhazikika, imakhuthala, ndipo nthawi zambiri imakhala yaubweya (hypertrichosis).

Machiritso
Tsitsi lomwe limakutidwa ndi nevus limatha kuchotsedwa ndi laser. Komabe, chifukwa cha kuchuluka kwa kubwereza, ndi zosatheka kuchotsa nevus ndi laser.

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  • Imadziwika kuti ndi nevus yayikulu yokhala ndi tsitsi lochuluka m'madera.
  • Chithandizo cha laser chingakhale chovuta chifukwa cha kuchuluka kwa pigmentation yosalekeza.
References Becker’s nevus - Case reports 35519166 
NIH
Becker nevus, yomwe imatchedwanso Becker melanosis, ndi khungu labwino. Zitha kuoneka kuyambira kubadwa kapena kukula pambuyo pake, zomwe zimayambitsa zigamba pakhungu kapena popanda tsitsi. Ndi zachilendo ndipo zimakhudza amuna. Malo omwe akhudzidwa nthawi zambiri amadetsedwa pakapita nthawi, ndipo tsitsi lochulukirapo limamera pamenepo. Wodwala wazaka 29 wa transgender adabwera ndi zigamba zakuda pakhungu zomwe zidayamba ali ndi zaka 15 ngati mawanga anooni. M’kupita kwa nthawi, mawangawa anakula kukhala zigamba zazikulu. Atawayeza, anaonetsa zigamba zakuda zokhala ndi tsitsi kumanja kwa pachifuwa, phewa, msana, ndi kumtunda kwa mkono, komanso m'mbali mosiyanasiyana.
Becker's nevus is also known as Becker melanosis. It is a benign lesion which can be presented as congenital or acquired with hairless or hypertrichotic lesions. It's a rare case which affects mainly male individuals. It is often pigmented and gets darker by time and excessive hair growth can be seen over it. A 29-year-old transgender patient presented with hyperpigmentation with the lesion which started at the age of 15 as a small hyperpigmented macule. The lesion increased gradually to form giant patches. On examination a right-side hyperpigmentation involving the anterior chest, shoulder, scapular region, upper arm with hypertrichosis and irregular margins.
 Lasers for Becker’s Nevus 30762191 
NIH
Becker's nevus ndi khungu lozindikira bwino lomwe limadziwikanso ngati chigamba chokhala ndi tsitsi loonjezera pa mbali imodzi ya thupi. Nthawi zambiri amachiritsidwa ndi ma laser, ngakhale njira zina zilipo. Mitundu yosiyanasiyana ya ma laser yakhala ikugwiritsidwa ntchito, koma yokha kapena pamodzi, yokhala ndi kutalika kwa 504 mpaka 10,600 nm ndi magawo kuchokera pa 1 mpaka 12. Zotsatira zimakhala zosiyanasiyana, koma kuphatikiza ma laser ndi mafunde osiyanasiyana kumawoneka bwino. Zotsatira zoipa nthawi zambiri zimakhala zochepa pang'ono mpaka pang'ono. Ngakhale ma laser nthawi zambiri amakhala otetezeka, amapereka mphamvu zolimbitsa (osati zabwino) kwa Becker's nevus.
Becker's nevus is a common pigmented dermatosis, usually featured by ipsilateral pigmented patch with hypertrichosis. Becker's nevus is often treated with various types of lasers although other regimens are available. A variety of lasers had been used alone or in combination to treat Becker's nevus. Laser wavelengths used for Becker's nevus ranged from 504 to 10,600 nm, while the number of treatment varied from 1 to 12 sessions. The clinical outcomes were mixed although combination of lasers with different wavelengths appeared to achieve a better efficacy. Adverse effects were usually mild to moderate erythema. While lasers are relatively safe, their efficacy for Becker's nevus is moderate.