Becker nevus

Pathogenesis

Androgens possibly a factor in growth of the lesion

Clinical manifestation

Asymptomatic, irregular, tan-to-brown patch, most commonly located over the chest, shoulder, or back; often at the time of puberty; thick, brown-to-black hairs develops both within and in close proximity to the patch; possibly associated with underlying smooth muscle hamartoma

Differential diagnosis

Melanoma; café au lait macule; Albright's syndrome; congenital melanocytic nevus; nevus spilus; postinflammatory hyperpig-mentation

Therapy

Treatment for cosmetic reasons only - surgical excision; Q-switched ruby laser ablation; Q-switched neodymium: yttrium-aluminium-garnet (YAG) laser

References

Goldman MP, Fitzpatrick RE (1994) Treatment of benign pigmented cutaneous lesions. Cutaneous Laser Surgery 106-141

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