Question 1:
A 47-year-old male with multiple monomorphic discrete red-brown macules and papules with associated telangiectatic components involving the trunk and extremities (Figures 1 and 2) presented to the outpatient dermatology clinic for further evaluation. Punch biopsies of representative lesions were performed. The lesions did have associated pruritis and would urticate with mechanical manipulation.
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Figure 1.
Figure 2.
Figure 3. H+E 20x
Figure 4. H+E 200x
Figure 5. CD117 200x
What is the best diagnosis?