mesorectumn.
/ˌmɛsə(ʊ)ˈrɛktəm/, U.S. /ˌmɛzoʊˈrɛktəm/; see also meso- comb. form. Anatomy and Zoology.
The mesentery or peritoneal investment of the rectum; the tissue between the rectum and the sacrum.
ΚΠ
1796 E. Home & A. Menzies in Philos. Trans. (Royal Soc.) 86 390 The mesentery is 7 inches broad, and its lower part, which may be called meso-rectum, is only five inches in breadth.
1807 R. Morris & J. Kendrick Edinb. Med. & Physical Dict. II. (at cited word) Mesorectum, the portion of the peritoneum, which connects the rectum to the pelvis.
1835–6 Todd's Cycl. Anat. & Physiol. I. 506/1 Along the posterior wall we find the rectum with its mesorectum.
1905 Amer. Naturalist 39 356 Along the margin of the mesorectum.., several small vessels resolved themselves out of the network and communicated with the posterior end of the rectal extension of the cardinal sinus.
1987 Lancet 6 June 1306/1 It is possible to section the entire mesorectum at 1–2mm intervals and remove all the lymph nodes in about 15 minutes.
2000 European Jrnl. Surg. Oncol. 25 590 It has been emphasized that the mesorectum is the key to local recurrence after resection for rectal cancer.
Derivatives
mesoˈrectal adj.
ΚΠ
1890 Cent. Dict. Mesorectal.
1990 Lancet 5 May 1067/2 The second finding..concerns involvement of lateral mesorectal margins by cancer.
2000 Amer. Jrnl. Surg. 179 92 This study aims to analyze the risk factors for anastomotic leakage after low anterior resection with the technique of total mesorectal excision.
This entry has been updated (OED Third Edition, September 2001; most recently modified version published online June 2022).
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