Question 1:
A 48-year-old male presented with a translucent, brown asymptomatic nodule on the volar aspect of his distal index finger. The lesion had been present for about one year. A biopsy was performed (Figures 1-3).
Figure 1: H&E, 40x.
Figure 2: H&E, 100x.
Figure 3: H&E, 400x.
Which of the following is the best diagnosis?