Tender nodule on the finger

A 27-year-old man presented with a tender lesion on the fifth finger on his left hand. This lesion initially started as a linear laceration that he obtained while skinning a sheep 2 to 3 weeks earlier. The physical examination revealed a tender nodule with a central hemorrhagic crust, a white middle ring, and a violaceous periphery over the left fifth extensor finger (Fig 1). A shave biopsy specimen was obtained to confirm the diagnosis (Fig 2).

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