Becker nevus - 貝克紅斑
https://en.wikipedia.org/wiki/Becker's_nevus
☆ 德國 Stiftung Warentest 2022 年的結果顯示,消費者對 ModelDerm 的滿意度僅略低於付費遠距醫療諮詢。 

其特徵是有一個大痣,並且該區域毛髮生長豐富。

因為色素沉著持續過度,雷射治療可能較具挑戰性。
relevance score : -100.0%
References
Becker’s nevus - Case reports 35519166 NIH
Becker nevus(貝克爾黑變病)是一種良性皮膚病,可於出生時即出現,也可於後天發展,形成有毛或無毛的皮膚斑塊。此病較少見,主要影響男性。隨著時間推移,受累區域通常會變深,且可能長出過多毛髮。29 歲的跨性別患者於門診就診,表示在 15 歲時皮膚出現小斑點,隨後逐漸擴大成較大的斑塊。檢查發現其右側胸部、肩部、背部及上臂有不規則邊緣的毛髮黑色斑塊。
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(貝克爾痣) 是一種常見的皮膚病,其特徵是身體一側出現色素斑塊,並伴隨過度毛髮生長。雖有其他治療選擇,但通常以雷射為主。單獨或組合使用不同類型的雷射,波長範圍為 504 至 10,600 nm,療程次數為 1 至 12 次。治療結果各異,但結合不同波長的雷射似乎較為有效。副作用通常僅為輕度至中度的發紅。雖然雷射大多安全,但對 Becker's nevus(貝克爾痣) 的治療效果僅屬中等,並不理想。
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.
○ 治療
覆蓋在痣上的毛髮可透過雷射去除,但因痣的復發率較高,僅靠雷射完全根除痣幾乎不可能。