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A 25-year-old right hand dominant male presents for a second opinion with the painless mass seen in Figure A. He denies recent fevers, chills, or any other systemic symptoms. An incisional biopsy is performed and a histologic specimen of the lesion is seen in Figure B. Which of the following is the most likely diagnosis?
Squamous cell carcinoma
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Figure A shows the clinical photo of a 28-year-old homeless man who presents with a left thumb mass which has been present for the last three years. He reports having a similar mass that was excised at an outside hospital 5 years earlier. A biopsy of the mass is taken, and the histopathology is shown in Figures B and C. What is the most likely diagnosis?
Epidermal inclusion cyst
A 25-year-old man presents with a nodular mass on the palm of his hand that has been slowly enlarging over the past six months. The patient denies a history of injury, arthralgias, fevers, and weight loss. On examination, the mass is firm with minimal tenderness to palpation and no erythema. A clinical photograph and biopsy specimen are shown in Figures A and B. The lesion depicted here has a propensity to metastasize to what location?