Becker nevus (BN) or Becker melanosis is a cutaneous hamartoma characterized by a large, unilateral, hyperpigmented area with irregular borders and coarse dark terminal hairs. Becker nevus is thought to be an androgen-dependent lesion with increased androgen sensitivity and receptor density within the lesion. Although Becker’s nevus is generally unilateral in nature, there are very few reported cases of bilateral symmetrical lesions without other associated anomalies. We herein report a rare case of bilateral, symmetrical, non-syndromic giant Becker’s nevus and have also reviewed the probable pathogenesis and emerging treatment modalities.
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