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Colorectal Surgery »  Conditions & Procedures »  Gastrointestinal Neuroendocrine (Carcinoid) Tumors

Gastrointestinal Neuroendocrine (Carcinoid) Tumors

Carcinoid tumors are the most common type of neuroendocrine tumor, the majority occuring within the gastrointestinal system, notably the appendix (35%), ileum (part of the small intestine) (28%), and rectum (13%). 

Gastrointestinal neuroendocrine (carcinoid) tumors form from a type of neuroendocrine cell (a cell that is like a nerve cell and a hormone-making cell). These cells are scattered throughout the chest and abdomen, but most are found in the GI tract. Neuroendocrine cells make hormones that help control digestive juices and the muscles used in moving food through the stomach and intestines. A GI carcinoid tumor may also make hormones and release them into the body. These tumors usually grow slowly and are classified as low-grade tumors, but in some cases may begin to grow rapidly.


The following is syndicated content from the National Cancer Institute (NCI). 

Clinics & Appointments

Gastrointestinal Surgery at Parnassus

400 Parnassus Ave.
2nd Floor
San Francisco, CA 94143

(415) 353-2161 Front Desk
(415) 353-2804 New Patients
(415) 353-2161 Follow-Up Appts.
(415) 353-2505 Fax

Hours: Monday thru Friday
8 a.m. – 5 p.m

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Gastrointestinal Surgery at Parnassus

400 Parnassus Ave., 2nd Floor
San Francisco, CA 94143 

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Gastrointestinal Surgical Oncology

Bakar Precision Cancer Medicine Building
1825 Fourth St.
Fourth Floor
San Francisco, CA 94158

Phone: (415) 502-5577
Fax: (415) 502-2236

Hours: Monday to Friday
8:00 a.m. – 5:00 p.m.

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Gastrointestinal Surgical Oncology

Bakar Precision Cancer Medicine Building
1825 Fourth St.
Fourth Floor
San Francisco, CA 94158

Phone: (415) 502-5577
Fax: (415) 502-2236

Google Map & Directions
Campus & Parking Map
Multi-Lingual Driving Directions
Directions by UCSF Destination
UCSF Medical Center Patient Info

Clinical Team

  • Emily Bergsland, M.D.Gastrointestinal Oncologist
  • Carlos U. Corvera, M.D.Gastrointestinal Cancer Surgeon
  • Kenzo Hirose, M.D.Gastrointestinal Cancer Surgeon
  • R. Kate Kelley, M.D.Gastrointestinal Oncologist
  • Kimberly Kirkwood, M.D.Gastrointestinal Cancer Surgeon
  • Andrew H. Ko, M.D.Gastrointestinal Oncologist
  • W. Michael Korn, M.D.Gastrointestinal Oncologist
  • Eric Nakakura, M.D., Ph.D.Gastrointestinal Cancer Surgeon
  • Margaret A. Tempero, M.D.Gastrointestinal Oncologist

Related Conditions & Procedures

  • Carcinoid Syndrome
  • Liver Metastases

Related News

  • Eric Nakakura and Research Group Awarded $1.2M Grant to Study Small Intestinal Neuroendocrine Tumors
  • Eric Nakakura and Emily Bergsland Discuss Carcinoid Syndrome Treatment on "Healthy Body, Healthy Mind" Series
 
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