[Detectability of oncological patients in the Kar-kalpak ASSR based on expedition data].

A two-step prophylactic examination was employed in 5921 healthy persons living in rural areas of the Kara-Kalpak ASSR, different malignant tumors being revealed in 47 persons (i. e. in 0.79 per cent of the individuals under examination). It is worth noting that the high rate of recognition of oncological patients in mass prophylactic examinations is mainly due to the use of a fibergastroscope made in Japan. Among the cases with revealed malignancies esophageal cancer takes the first place (in 26 persons), making 55.3%. Large-frame esophagofluorography in 21 patients allowed the detection of the esophageal and cardiac involvement, thus encouraging to raise a question of the organization of large-frame fluorography of the esophagus in persons, aged over 40, in the areas and republics where esophageal cancer is a commonly observed pathology.