How is gastrinoma diagnosed?

Answer:
Gastrinomas are usually diagnosed by a blood test that measures the level of gastrin in the blood. Patients with gastrinomas often have gastrin levels more than 200 pg/mL, which is 4-10 times higher than normal.
First answer by Gale Ency. of Medicine. Last edit by Gale Ency. of Medicine. Contributor trust: 36 [recommend contributor recommended]. Question popularity: 1 [recommend question].