29 year-old male smoker with history of pale painful legs and feet leading to ulcers and resulting in amputation.
A 48-year-old female presented to her primary care physician with a painful lesion on her left labia that had developed over the previous 1-2 days.
9 year old girl with patch of alopecia. Born with deep ulcer on scalp which healed.
13 year old girl with spot of alopecia on temporal scalp.