Comparative clinicopathological characteristics of colon and rectal T1 carcinoma

  • Authors:
    • Katsuro Ichimasa
    • Shin‑Ei Kudo
    • Hideyuki Miyachi
    • Yuta Kouyama
    • Takemasa Hayashi
    • Kunihiko Wakamura
    • Tomokazu Hisayuki
    • Toyoki Kudo
    • Masashi Misawa
    • Yuichi Mori
    • Shingo Matsudaira
    • Eiji Hidaka
    • Shigeharu Hamatani
    • Fumio Ishida
  • View Affiliations

  • Published online on: December 6, 2016     https://doi.org/10.3892/ol.2016.5464
  • Pages: 805-810
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Abstract

Lymph node metastasis significantly influences the management of patients with colorectal carcinoma. It has been observed that the biology of colorectal carcinoma differs by location. The aim of the current study was to retrospectively compare the clinicopathological characteristics of patients with colon and rectal T1 carcinomas, particularly their rates of lymph node metastasis. Of the 19,864 patients who underwent endoscopic or surgical resection of colorectal neoplasms at Showa University Northern Yokohama Hospital, 557 had T1 surgically resected carcinomas, including 457 patients with colon T1 carcinomas and 100 patients with rectal T1 carcinomas. Analysed clinicopathological features included patient age, gender, tumor size, morphology, tumor budding, invasion depth, vascular invasion, histological grade, lymphatic invasion and lymph node metastasis. Rectal T1 carcinomas were significantly larger than colon T1 carcinomas (mean ± standard deviation: 23.7±13.1 mm vs. 19.9±11.0 mm, P<0.01) and were accompanied by significantly higher rates of vascular invasion (48.0% vs. 30.2%, P<0.01). Significant differences were not observed among any other clinicopathological factors. In conclusion, tumor location itself was not a risk factor for lymph node metastasis in colorectal T1 carcinomas, even though on average, rectal T1 carcinomas were larger and accompanied by a significantly higher rate of vascular invasion than colon T1 carcinomas.
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February-2017
Volume 13 Issue 2

Print ISSN: 1792-1074
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Spandidos Publications style
Ichimasa K, Kudo SE, Miyachi H, Kouyama Y, Hayashi T, Wakamura K, Hisayuki T, Kudo T, Misawa M, Mori Y, Mori Y, et al: Comparative clinicopathological characteristics of colon and rectal T1 carcinoma. Oncol Lett 13: 805-810, 2017.
APA
Ichimasa, K., Kudo, S., Miyachi, H., Kouyama, Y., Hayashi, T., Wakamura, K. ... Ishida, F. (2017). Comparative clinicopathological characteristics of colon and rectal T1 carcinoma. Oncology Letters, 13, 805-810. https://doi.org/10.3892/ol.2016.5464
MLA
Ichimasa, K., Kudo, S., Miyachi, H., Kouyama, Y., Hayashi, T., Wakamura, K., Hisayuki, T., Kudo, T., Misawa, M., Mori, Y., Matsudaira, S., Hidaka, E., Hamatani, S., Ishida, F."Comparative clinicopathological characteristics of colon and rectal T1 carcinoma". Oncology Letters 13.2 (2017): 805-810.
Chicago
Ichimasa, K., Kudo, S., Miyachi, H., Kouyama, Y., Hayashi, T., Wakamura, K., Hisayuki, T., Kudo, T., Misawa, M., Mori, Y., Matsudaira, S., Hidaka, E., Hamatani, S., Ishida, F."Comparative clinicopathological characteristics of colon and rectal T1 carcinoma". Oncology Letters 13, no. 2 (2017): 805-810. https://doi.org/10.3892/ol.2016.5464