We hereby report a 72-year-old female sustained a persistent amelanotic ulcer of the nail bed of the right great toe for 1 year, associated with destruction of the overlying nail plate.

• 在此我们报告一位七十二岁女性病患在最近一年内发现在右大脚趾甲床有持续性无黑色素溃疡，而且趾甲也被破坏。