Last year my husband had 3 lumps come up around his nipple. The doctors said they was cysts.  Now he has another 2 on his chest, 7 going from chests to his stomach.  He has one you can feel, it is the size of a tennis ball. We can feel 13 in total, they are painless. The doctors just keep saying they're cysts, how can they be sure. Also he is a diabetic,  and a man who has to be dragged to the doctors through my nagging . What can we do just to get a scan and check out x