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Changes to This Summary (02 / 08 / 2013)

The PDQ cancer information summaries are reviewed regularly and updated as new information becomes available. This section describes the latest changes made to this summary as of the date above.

Cancer Risk Assessment and Counseling

Recommended Related to Cancer

General Information About Gastrointestinal Carcinoid Tumors

Epidemiology The age-adjusted incidence of carcinoid tumors worldwide is approximately 2 per 100,000 persons.[1,2] The average age at diagnosis is 61.4 years.[3] Carcinoid tumors represent about 0.5% of all newly diagnosed malignancies.[2,3] Anatomy Carcinoid tumors are rare, slow-growing tumors that originate in cells of the diffuse neuroendocrine system. They occur most frequently in tissues derived from the embryonic gut. Foregut tumors, which account for up to 25% of cases, arise...

Read the General Information About Gastrointestinal Carcinoid Tumors article > >

Added Rothwell et al. as reference 49.

Components of the Risk Assessment Process

Revised text to state that studies suggest that paper-based family history questionnaires completed before the appointment provide accurate family history information and that the use of these questionnaires is an acceptable and understandable family history collection method (cited Appleby-Tagoe et al. as reference 29). Also added text to state that questionnaire-based assessments may lead to some underreporting of family history; therefore, a follow-up interview to confirm the reported information and to capture all relevant family history information may be required (cited Vogel et al. as reference 30).

This summary is written and maintained by the PDQ Cancer Genetics Editorial Board, which is editorially independent of NCI. The summary reflects an independent review of the literature and does not represent a policy statement of NCI or NIH. More information about summary policies and the role of the PDQ Editorial Boards in maintaining the PDQ summaries can be found on the About This PDQ Summary and PDQ NCI's Comprehensive Cancer Database pages.

WebMD Public Information from the National Cancer Institute

Last Updated: February 25, 2014
This information is not intended to replace the advice of a doctor. Healthwise disclaims any liability for the decisions you make based on this information.
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