[Solved]: Your 38 year old male patient Mark is being seen in…

Your 38 year old male patient Mark is being seen in your clinic for routine health physical and complaints of heartburn. During your evaluation you identify darkened or velvety skin in the neck, groin, and/or axilla with associated achrocordons. This is most likely a diagnosis of which of the following? *Seborrheic Kerstosis *Actinic keratosis *Keratoacanthoma *Acanthuses nigricans