Spitz Naevus

Hi I had a mole taken out a month or two ago. Today I received a letter saying that dermatology have recieved histology results of the mole that they have removed and is ‘confirmed’ to be a spitz naevus. They have given me a leaflet with information about spitz navei. Upon reading that it has lead me to believe that all spitz naevus are benign is this true? I’m just uncertain as they haven’t said if it is cancerous or benign in the letter, I’m a bit lost as I want to believe it is benign but am just not sure. They also said they want to take slightly larger margins where they have already operated on to allow for more healthy skin, anyone been in this situation or know if I can yet say if it is benign or not basically, as it has been confirmed as a spitz naevus? Thanks a lot in advance sorry for rambling