Hi all, 

my dad had been suffering severe upper abdominal pain one evening and spent a few days in hospital where they were unsure of what was causing the pain. They found a black mass and were unable to perform any biopsy as it was too near his organs and tricky to operate on. He has had a few scans since and just yesterday we received a letter for an appointment to visit an outpatient appointment with medical oncology. I'm worried as it stated "cancer-center". Is this usually how a diagnoses goes?