[Causes of late diagnosis of cancer of the large intestine and its complications].

The results of treatment of 44 patients with complicated colonic cancer were studied. It was established that at the prehospital stage, more 60% of them were not examined purposefully, although there were indications for such an examination. Early symptoms of development of a colonic tumor were revealed. The main causes of late diagnosis were the inadequate oncologic watchfulness of the polyclinical physicians, and as well a low level of organization of the prophylactic medical examinations.