Electroexcision combined with laser photocoagulation was performed in 12 patients with creeping neoplasms of the stomach and in 39 patients with the same condition of the large intestine. One-year follow-up studies showed that 2 patients with a malignant gastric tumour had recurrence 9 months after the combined treatment; I patient has recurrence in the same terms after similar treatment of creeping benign adenoma. Combined treatment proved to be more effective in 39 patients with large-intestinal tumour, including invasive cancer, with no recurrence during a year. It follows that the effectiveness of combined treatment was 94.2 per cent.
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