Statistical Study of Second Primary Malignancies After Esophagectomy for Esophageal Cancer
Along with improvements in the prognosis of esophageal cancer patients, the risk of a patient developing a second primary cancer may have increased. Although double cancer is not rare [1,2], there have been no statistical studies on whether the incidence of double cancer, involving the esophagus and another organ, is high compared with the estimated incidence based on the morbidity of the general population. We studied the risk of patients developing second primary cancers after esophagectomy for esophageal cancer, using the morbidity rates of malignant neoplasms in our prefecture in Japan.
KeywordsEsophageal Cancer Urinary Bladder Gall Bladder Primary Cancer Stomach Cancer
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