Although estimates vary, the annual incidence of clinically significant<unk> s is approximately 2.5–5 per 100,000; two thirds are carcinoid tumors and one third are other<unk> s. The prevalence has been estimated as 35 per 100,000, and may be considerably higher if clinically silent tumors are included. An autopsy study of the pancreas in people who died from unrelated causes discovered a remarkably high incidence of tiny asymptomatic<unk> s. Routine microscopic study of three random sections of the pancreas found<unk> s in 1.6%, and multiple sections identified<unk> s in 10%. As diagnostic imaging increases in sensitivity, such as endoscopic ultrasonography, very small, clinically insignificant<unk> s may be coincidentally discovered; being unrelated to symptoms, such neoplasms may not require surgical excision.
Neuroendocrine tumor
Pituitary adenoma
Metastatic insulinoma
Insulinoma
Glucagonoma
Granular cell tumor
Endocrine gland neoplasm
Glial tumor