LAUSR

Picosecond laser has shown promise for treating pigmentation disorders. Based on its selective photomechanical effect that causes mechanical breakdown of pigment into smaller fragments and produces minimal thermal irritation in the surrounding tissue, picosecond laser can be a good alternative treatment for nail pigmentation. Here, we report about a 58-year-old woman who was diagnosed with clinical stage IIB (pT1a pN1a cM0) breast cancer, and her pathological report revealed grade II and proliferative index I carcinoma. She had received right-side oncoplastic surgery and postoperative regional lymph node radiotherapy, followed by hormonal therapy with letrozole in January 2018. The patient was also found to have a black discoloration over her right second toe after the first month of letrozole therapy. This article is protected by copyright. All rights reserved.