Is A Mass In The Groin Area Post Mesh Implantation A Cause For Concern?

my fiance has a lump by his inner thigh close to the side of his penis. it almost looked oblong. He also has a round lump in upper stomache. We thought it might be a hernia because he just had a mesh done earlier this year . He went to the dr and had a mri. Well today he had a fo;;ow up and the cd from the mri. The dr checked him and said it is not a hernia and that it is a mass. He is scheduling a CT so they can see it better he said. im worried and i know he is to. A couple of years ago my fiance had cerbral stroke. Im hoping that doesnt manifest again. Should we be concerned? im trying to type this before he gets back from the store. i dont want him to know im worried