What are these conditions and are they the same? If not, please explain.

CASE STUDY

 

 

Beth is nearly a year old and her mum has brought her to the clinic to ask questions about what treatments might be available and how old Beth needs to be before treatment can commence. She developed a purple birthmark on her face, a couple of weeks after she was born.

Mum, Cassie, also shows you her birthmark on her upper arm, which is brown in colour and asks if they are the same thing. Cassie wants to know if her birthmark can be lightened or treated also.

What are these conditions and are they the same? If not, please explain.