Insulinoma epidemiology and demographics: Difference between revisions
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==Overview== | ==Overview== | ||
==Epidemiology== | ==Epidemiology and Demographics== | ||
===Incidence=== | |||
*Insulinomas are rare [[neuroendocrine tumor]]s with an incidence estimated at 1 to 4 new cases per million persons per year. | *Insulinomas are rare [[neuroendocrine tumor]]s with an incidence estimated at 1 to 4 new cases per million persons per year. | ||
*Insulinoma is one of the most common types of tumor arising from the [[islets of Langerhans]] cells (pancreatic endocrine tumors). | *Insulinoma is one of the most common types of tumor arising from the [[islets of Langerhans]] cells (pancreatic endocrine tumors). | ||
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*About 5% of cases are associated with tumors of the parathyroid glands and the pituitary ([[Multiple endocrine neoplasia type 1]]) and are more likely to be multiple and malignant. | *About 5% of cases are associated with tumors of the parathyroid glands and the pituitary ([[Multiple endocrine neoplasia type 1]]) and are more likely to be multiple and malignant. | ||
*Most insulinomas are small, less than 2 cm. | *Most insulinomas are small, less than 2 cm. | ||
===Age=== | |||
*The median age at diagnosis is 47 years. | *The median age at diagnosis is 47 years. | ||
*Females are more commonly affected with insulinoma than males. The male to female ratio is approximately 2 to 3. | ===Gender=== | ||
*Females are more commonly affected with insulinoma than males. | |||
*The male to female ratio is approximately 2 to 3. | |||
===Race=== | |||
*There is no racial predilection to the insulinoma. | *There is no racial predilection to the insulinoma. | ||
==References== | ==References== | ||
{{Reflist|2}} | {{Reflist|2}} | ||
Revision as of 20:02, 1 October 2015
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]
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Overview
Epidemiology and Demographics
Incidence
- Insulinomas are rare neuroendocrine tumors with an incidence estimated at 1 to 4 new cases per million persons per year.
- Insulinoma is one of the most common types of tumor arising from the islets of Langerhans cells (pancreatic endocrine tumors).
- Estimates of malignancy (metastases) range from 5% to 30%.
- Over 99% of insulinomas originate in the pancreas, with rare cases from ectopic pancreatic tissue.
- About 5% of cases are associated with tumors of the parathyroid glands and the pituitary (Multiple endocrine neoplasia type 1) and are more likely to be multiple and malignant.
- Most insulinomas are small, less than 2 cm.
Age
- The median age at diagnosis is 47 years.
Gender
- Females are more commonly affected with insulinoma than males.
- The male to female ratio is approximately 2 to 3.
Race
- There is no racial predilection to the insulinoma.