Two patients present with newly developed brown papules. The first patient, a 45-year-old man, presented with a new mole that continues to grow and is associated with occasional pruritus and bleeding. The second patient, a 47-year-old man, presented with a 6-month history of a brown, growing “mole.” Can you differentiate between the two?
Two patients present with painless annular lesions. One presented to the dermatology clinic with a two-month history of a ringed rash on his abdomen, and the other patient had a three-week history of a slowly enlarging, pruritic rash on his left arm. Can you differentiate between the two?