The Double and Multiple Primary Cancer in the Patients of Hypopharyngeal Cancer:

A Value of Upper Gastro-intestinal Endoscopic Examination

Abstract

From January 1983 to June 1988, we treated thirty patients of hypopharyngeal cancer. Among these 30 patients the double and multiple primary cancers were found in five cases (16.7%). All of them were male who had have a history of excessive smoking and drinking. The secondary cancer occurred most frequently in the upper digestive tract, especially esophagus. Since the secondary esophageal cancers were in early stage in 4 cases, we could not detect them by the esophagogram. In those cases, we could detect the lesion under the upper gastro-intestinal endoscopy with Lugol stain. Accordingly, we recommend this examination in the patients of hypopharyngeal cancer.