Question 1:
A 59-year-old man presented with a six-month history of a rash on his torso and upper extremities with mild associated itching. Physical exam revealed multiple non-scaly, partially blanchable, reddish-brown patches, approaching near confluence on the chest, back, and proximal extremities. Review of systems was notable for occasional knee pain and fatigue. Lab work revealed a positive ANA (1:80), elevated ESR (25 mm/hr), negative RPR, and was otherwise unremarkable. Biopsy of one of the lesions on the forearm revealed the following histopathologic findings (Figures 1-5).
Figure 1
Figure 2
Figure 3
Figure 4
Figure 5
What is the best diagnosis?