A 45-year-old man presents with a 4- to 5-year history of an intermittent, asymptomatic, red, circular rash on his trunk. Trials of antifungal creams have not been successful. The patient is otherwise healthy and takes no medications.
During a routine skin examination, a papule of several years’ duration is noted on the upper lip of a 71-yearold man. The patient states that the lesion has been slowly enlarging; it does not bleed even during shaving.
A 33-year-old woman presents with an asymptomatic facial rash for which she has been using mometasone cream regularly. Initially, she had a small patch of acne on one cheek that quickly cleared with this cream. However, the rash has been worsening for the past year.
For several weeks, a 33-year-old man has had an asymptomatic lesion on the head of the penis. He has had a new sex partner in the past few months but is unaware of any health problems she may have. What is the likely cause of this lesion?
For a few months, a 27-year-old man has had an itchy rash in the groin area. He tried an over-the-counter “jock itch” remedy, but it was not effective. He is otherwise healthy.
Which of the following would you include in the differential diagnosis?
This abdominal rash developed while a 63-year-old woman was traveling in Israel. She was admitted to the hospital, where she received intravenous antibiotics, and was discharged after 5 days. She now returns to the United States and wonders what she had, because she did not understand what the physician in Israel had told her. She has brought all of her medical records.