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Related Concept Videos

Cancer02:18

Cancer

Cancers arise due to mutations in genes involved in the regulation of cell division, which leads to unrestricted cell proliferation. Modern science and medicine have made great strides in the understanding and treatment of cancer, including eradicating cancer in some patients. However, there is still no cure for cancer. This is largely due to the fact that cancer is a large group of many diseases.
Mutagenicity and Carcinogenicity01:25

Mutagenicity and Carcinogenicity

Mutagenicity and carcinogenicity refer to the ability of drugs to cause genetic defects and induce cancer, respectively. The International Agency for Research on Cancer (IARC) classifies agents into four groups based on their carcinogenic potential. Group 1 agents are known human carcinogens; group 2A agents are probably carcinogenic to humans; group 3 agents lack data to support their role in carcinogenesis; and group 4 includes agents for which data support that they are not likely to be...
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Related Experiment Video

Updated: Jun 27, 2026

Gene Regulation and Targeted Therapy in Gastric Cancer Peritoneal Metastasis: Radiological Findings from Dual Energy CT and PET/CT
10:28

Gene Regulation and Targeted Therapy in Gastric Cancer Peritoneal Metastasis: Radiological Findings from Dual Energy CT and PET/CT

Published on: January 22, 2018

Carcinoid tumors: what should increase our suspicion?

Gaurav Aggarwal1, Kamil Obideen, Mohammad Wehbi

  • 1Department of Medicine, Emory University, Atlanta, GA 30322, USA. gaggarw@emory.edu

Cleveland Clinic Journal of Medicine
|December 18, 2008
PubMed
Summary

Carcinoid tumors, a type of neuroendocrine neoplasm, are increasingly diagnosed. Primary care physicians must consider these tumors due to vague symptoms and increased cancer risk, initiating timely diagnostic testing and close patient follow-up.

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Last Updated: Jun 27, 2026

Gene Regulation and Targeted Therapy in Gastric Cancer Peritoneal Metastasis: Radiological Findings from Dual Energy CT and PET/CT
10:28

Gene Regulation and Targeted Therapy in Gastric Cancer Peritoneal Metastasis: Radiological Findings from Dual Energy CT and PET/CT

Published on: January 22, 2018

Area of Science:

  • Oncology
  • Gastroenterology
  • Endocrinology

Background:

  • Carcinoid tumors are neuroendocrine neoplasms predominantly affecting the gastrointestinal tract.
  • There has been a documented increase in carcinoid tumor incidence over the past 2-3 decades.
  • Patients frequently exhibit nonspecific and vague clinical presentations.

Purpose of the Study:

  • To highlight the rising incidence of carcinoid tumors.
  • To emphasize the importance of clinical suspicion for diagnosis in primary care.
  • To underscore the need for vigilant follow-up due to associated malignancy risks.

Main Methods:

  • Review of epidemiological trends in carcinoid tumor incidence.
  • Analysis of common clinical presentations and diagnostic challenges.
  • Evaluation of the association between carcinoid tumors and other malignancies.

Main Results:

  • Carcinoid tumor incidence shows a significant upward trend.
  • Nonspecific symptoms often delay diagnosis.
  • Patients with carcinoid tumors have a higher risk of other cancers.

Conclusions:

  • Primary care physicians should maintain a high index of suspicion for carcinoid tumors.
  • Prompt diagnostic evaluation is crucial when clinical suspicion arises.
  • Long-term monitoring is essential for patients diagnosed with carcinoid tumors due to secondary malignancy risks.