I have been an EMT for almost 26 years and my ex-husband had something familiar to yours. It is always best to get things like that biopsied in case of future problems. It could be just a lymph node, or it could also be a cyst of some type. Good luck!
I Had A Hard Growth Between My Leg And Scrotum On My Right Side... Is That A Lymph Node? I Saw A Picture On This Site Of The Locations And They Were On The Left Side. Please Help?
It sounds very like a swollen lymph node which is common to find after a localised long term or untreated infection.