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.
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