16. Glucagonomas
Because of the vast number of symptoms a patient may develop, it can be difficult for doctors to determine whether it’s pancreatic cancer or another kind of tumor. If you are experiencing a glucagonoma tumor it will secrete glucagon, which can increase glucose levels and mimic diabetes. A distinguishing symptom of the kind of tumor is irritation of the tongue and corners of their mouth, in addition to a rash called necrolytic migratory erythema. According to the American Cancer Society, the rash is red and blistery and is the number one reason patients with glucagonoma tumors visit a physician.
