A 44-year-old woman presented with a 2-year history of multiple enlarging, painful nodules. Physical examination revealed several irregularly shaped, firm nodules with hyperpigmentation and induration on the trunk and upper arms
![image image](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh0CqFjKS_aRzRIMWQP8GUZgHRA6eE-dAJ9qFy2nvfHSvhinfbodnf74ClKbt6-2F6cyjgY0UV__LQrwfZOdpLF29F-lgLum-dOOZACrTNPxltHjVVEtBj9_pTYtMff-YHgRj5R2A7tFuP0/?imgmax=800)
What are the possible DDx ?