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Gastric Cancer Treatment (PDQ®): Treatment - Health Professional Information [NCI] - General Information About Gastric Cancer

Incidence and Mortality

Estimated new cases and deaths from gastric cancer in the United States in 2013:[1]

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  • New cases: 21,600.
  • Deaths: 10,990.

Epidemiology

Management of adenocarcinoma histology, which accounts for 90% to 95% of all gastric malignancies, is discussed in this summary. The site of cancer origin within the stomach has changed in frequency in the United States over recent decades.[2] Cancer of the distal half of the stomach has been decreasing in the United States since the 1930s. However, in the last 2 decades, the incidence of cancer of the cardia and gastroesophageal junction has been rapidly rising. The incidence of this cancer has increased dramatically, especially in patients younger than 40 years.

Risk Factors

In the United States, gastric cancer ranks 14th in incidence among the major types of cancer malignancies. While the precise etiology is unknown, acknowledged risk factors for gastric cancer include the following:[3,4,5]

Prognosis

The prognosis of patients with gastric cancer is related to tumor extent and includes both nodal involvement and direct tumor extension beyond the gastric wall.[6,7] Tumor grade may also provide some prognostic information.[8]

In localized distal gastric cancer, more than 50% of patients can be cured. However, early-stage disease accounts for only 10% to 20% of all cases diagnosed in the United States. The remaining patients present with metastatic disease in either regional or distant sites. The overall survival rate in these patients at 5 years ranges from almost no survival for patients with disseminated disease to almost 50% survival for patients with localized distal gastric cancers confined to resectable regional disease. Even with apparent localized disease, the 5-year survival rate of patients with proximal gastric cancer is only 10% to 15%. Although the treatment of patients with disseminated gastric cancer may result in palliation of symptoms and some prolongation of survival, long remissions are uncommon.

Gastrointestinal stromal tumors occur most commonly in the stomach. (Refer to the PDQ summary on Gastrointestinal Stromal Tumors Treatment for more information.)

Related Summaries

Other PDQ summaries containing information related to gastric cancer include the following:

  • Stomach (Gastric) Cancer Prevention.
  • Stomach (Gastric) Cancer Screening.
  • Unusual Cancers of Childhood (childhood cancer of the stomach).

References:

  1. American Cancer Society.: Cancer Facts and Figures 2013. Atlanta, Ga: American Cancer Society, 2013. Available online. Last accessed March 13, 2013.
  2. Blot WJ, Devesa SS, Kneller RW, et al.: Rising incidence of adenocarcinoma of the esophagus and gastric cardia. JAMA 265 (10): 1287-9, 1991.
  3. Kurtz RC, Sherlock P: The diagnosis of gastric cancer. Semin Oncol 12 (1): 11-8, 1985.
  4. Scheiman JM, Cutler AF: Helicobacter pylori and gastric cancer. Am J Med 106 (2): 222-6, 1999.
  5. Fenoglio-Preiser CM, Noffsinger AE, Belli J, et al.: Pathologic and phenotypic features of gastric cancer. Semin Oncol 23 (3): 292-306, 1996.
  6. Siewert JR, Böttcher K, Stein HJ, et al.: Relevant prognostic factors in gastric cancer: ten-year results of the German Gastric Cancer Study. Ann Surg 228 (4): 449-61, 1998.
  7. Nakamura K, Ueyama T, Yao T, et al.: Pathology and prognosis of gastric carcinoma. Findings in 10,000 patients who underwent primary gastrectomy. Cancer 70 (5): 1030-7, 1992.
  8. Adachi Y, Yasuda K, Inomata M, et al.: Pathology and prognosis of gastric carcinoma: well versus poorly differentiated type. Cancer 89 (7): 1418-24, 2000.
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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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