[Transsphincteric approach to the rectum in cases of low early cancer (author's transl)].

Based on 4 years of experience with the transsphincteric approach to the anorectum in 24 cases of low-situated cancers of the rectum, an attempt is made to demonstrate which tumors are treatable by this method and which are not. Exophytic or polyploid tumors with a diameter of not more than 3-4 cm, that are easily palpated and appear freely mobile, and have histologically a differentiated pattern may be approached by transsphincteric resection, under the condition that the tumor has not spread across the wall of the rectum or into adjacent lymph nodes. The method is not recommended in any other instances becauses of the high risk of recurrencies.