From the data collected in the Cancer Registry of Calvados, a screening program for neoplastic lesions of the whole upper digestive and respiratory tract was performed in a canton where esophageal cancer incidence is very high. 137 men underwent this examination for mouth, pharyngo-larynx and esophagus. None neoplastic lesion was revealed but histologic and cytologic swabs showed some abnormalities that are now being studied.
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