[Esophageal cancer morbidity according to patient genealogies (based on data from Guryev Province)].

The author has studied familial predisposition to esophageal tumors, taking into account the high incidence of esophageal cancer among the population of Gur'ev Province. Totally, 200 patients with esophageal cancer (probands) were questioned. The destiny of 2432 relatives in the four generations genealogy was followd up.