5. Atypical diabetic onset in adulthood
The endocrine pancreas is composed of the islets of Langerhans, where beta cells produce insulin. When pancreatic tissue is destroyed by chronic inflammation or replaced by tumor tissue, insulin production collapses.
“The sudden onset of diabetes mellitus in an adult over 50 years of age, without a family history, obesity, or other classic risk factors, should be considered a potential symptom of pancreatic cancer until proven otherwise.” — American Cancer Society.
This condition, known as pancreatogenic diabetes (Type 3c), is a critical early warning sign. Recent research underscores that recent-onset hyperglycemia can precede a pancreatic cancer diagnosis by months or even years, offering an invaluable window of opportunity for early detection.
6. Dyspepsia and early satiety
Minor gastrointestinal disturbances are often dismissed as gastritis or irritable bowel syndrome. However, a dysfunctional pancreas can cause dyspepsia (chronic indigestion), characterized by an uncomfortable feeling of fullness, frequent belching, and abdominal bloating.
In addition, if a pancreatic tumor grows large enough to press on the stomach or duodenum, the patient will experience early satiety: the feeling of being completely full after eating only a few bites. Nausea and recurrent vomiting may also occur if there is a partial obstruction of the gastric outlet.
