![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhdln7vSt-7zoQmipnwc5CtPvf_EOeLHFhXtjRDDsjpzLlHS9F51F7I7MsV10Yn4ocI3xG0nJgDnKwZaAGLbCXMzz6Nza0JBY14F1pZ_eoAy0bgcJHd8xHogVSvb_d_wtqzfq6NO6VcD_U/s400/DECA1.jpg)
A 58-year-old woman consulted for this non homogeneous lesion on her left forearm.
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjesh2z9w9bRGVUCkPBsbZ6D2XLqTuyob6ZXt3WH6bzGtCXFwAzpNoVllCNnIn6wVMQ62kwn8O4CXni4gScjMULuA9ECkvU4TJICGEs_2rjZBqLb07DQyNH2m7jRiJKr2ENy0qhs5J9oGE/s400/DECA1bis.jpg)
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgu_quaBWLRL37r8JaU2X6uFLwQ4sB4KXBJ87JZ_Q7jJ7CvLctMnW7QtkCamcMY7tM_YdkUZ9x5rkvb8aXziD8nRPHI3Npuerd_8Gr2kXp2szeLwQqVlVGFiDdyuPVzIvRHJ6BUemG6elk/s400/DECA+5.jpg)
Dermoscopy revealed a lightly pigmented network that was focally darker on certain areas or absent of other areas, and the presence of rare brown dots.
The red area was due to a punch biopsy.
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgPrRZ5KRj5Zpa4V6zrrny0g3Pc9y9SBdu4p6VgiRvjqWkSIbNFnfUQgx5VvUZW_LDJlcyfKS9g6cGnKcj30_j2a1q5sIfibWFxrIckxM-see6PJUgahFwwQ4jefAT3geBInSJFvC7V9S8/s400/DECA+3.jpg)
A biopsy was performed and revealed a lentigo maligna melanoma. The lesion was completely excised and pathology revealed LMM with a Breslow index at 0.10mm
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjytiZTzeyOA77YTlN1XD1Lj0Xd_Qli6BDqDyQ9_bP6IIQX8yKx-IV2rcQiFJGaeBox_gcxRH9ld-p1Svy1nVxAyDEkr-dnLJU-40hwI3Zm7GzZYEm0YGDzPpv9Es0raAW5hL8aI1Le_Ck/s400/DECA2.jpg)
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