Case 80

Medical history

A 20-year old previously healthy male patient, who was born and resides in a brazilian countryside town working as a bricklayer, presents with a single nodular skin lesion on the dorsal side of his right wrist. It was firstly noticed two months ago and has since evolved to a painless ulcer with raised edges and filled with granulation tissue. No lymph nodes enlargement, fever or any other constitutional symptoms are observed.



Question:
Based on the clinical data and photograph provided herein, which is the most likely diagnosis?

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