Mesothelioma Cancer

asbestos,mesothelioma,rare,uncommon,asbestosis,6.36,mesothelium

I has an ultrasound done of gallbladder and the results say i have a gallstone and hyperechoic at the tail of pancreas.
I went to my family Dr today who says its nothing to worry about that my blood levels are ok but ordered a cat scan to be sure.
But hes not a specialist and i am concerned of what hyperechoic means?
Do i need to worry about pancreatic cancer?
Im in no pain and urine and blood are ok!
I need someone who knows what this means to tell me if its serious or just inflamation or what?