A 73 year old male patient presents with an indurated and cr…

A 73 year old male patient presents with an indurated and crusted papule that has been growing slowly over the past year on his right ear.  No pearly borders or telangiectases are noted. It is painless and essentially asymptomatic.  The nurse practitioner should suspect: 

Today, you are examining a 4 year old boy, Samuel.  During h…

Today, you are examining a 4 year old boy, Samuel.  During his preschool physical, you note that he has an area (2cm) on his scalp near the posterior left hairline that has much less hair and some scaling in the hairless area.  You also note that he has some mild left posterior cervical lymphadenopathy.  Which of the following should be at the top of your differential diagnosis list?