直腸癌側方リンパ節転移の態様と治療成績

概要

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Fifty-three patients with rectal cancer who underwent radical operations with systematic lymphadenectomy, especially lateral node dissection, were reviewed with respect to frequency of lymph node metastasis and survival rate post operations. Higher frequency and rate of lymph node metastasis was observed in patients with Ra and Rb rectal cancer in comparison with Rs. The frequency of lymph node metastasis was revealed to have no correlation with the depth nor degree of circumference in tumor invasion. The highest incidence of lateral node metastasis was noted at #262 nodes. Close relationship was shown in the frequency of the central node and the lateral node metastasis, with 3 patients in which only lateral node metastasis were observed. In 1 patient whom tumor located one side of rectal wall, there was lateral node metastasis at another side. The prognosis of the patients with positive lateral nodes metastasis were poorer than those of negative group. However the patients with only #262 lymph node metastasis were revealed to have relatively good prognosis, suggesting that the indication of pelvic autonomic nerve-preserving operations would be wided by adjuvant therapy, such as preoperative radiation therapy.
日本大腸肛門病学会の論文