Management of inguinal lymph node metastases from rectal and anal canal adenocarcinoma.
Journal
Colorectal disease : the official journal of the Association of Coloproctology of Great Britain and Ireland
ISSN: 1463-1318
Titre abrégé: Colorectal Dis
Pays: England
ID NLM: 100883611
Informations de publication
Date de publication:
10 2022
10 2022
Historique:
revised:
13
04
2022
received:
30
11
2021
accepted:
18
04
2022
pubmed:
5
5
2022
medline:
1
11
2022
entrez:
4
5
2022
Statut:
ppublish
Résumé
The surgical treatment of inguinal lymph node (ILN) metastases secondary to anorectal adenocarcinoma remains controversial. This study aimed to clarify the surgical treatment and management of ILN metastasis according to its classification. This retrospective, multi-centre, observational study included patients with synchronous or metachronous ILN metastases who were diagnosed with rectal or anal canal adenocarcinoma between January 1997 and December 2011. Treatment outcomes were analysed according to recurrence and prognosis. Among 1181 consecutively enrolled patients who received treatment for rectal or anal canal adenocarcinoma at 20 referral hospitals, 76 (6.4%) and 65 (5.5%) had synchronous and metachronous ILN metastases, respectively. Among 141 patients with ILN metastasis, differentiated carcinoma, solitary ILN metastasis and ILN dissection were identified as independent predictive factors associated with a favourable prognosis. No significant difference was found in the frequency of recurrence after ILN dissection between patients with synchronous (80.6%) or metachronous (81.0%) ILN metastases. Patients who underwent R0 resection of the primary tumour and ILN dissection had a 5-year survival rate of 41.3% after ILN dissection (34.1% and 53.1% for patients with synchronous and metachronous ILN metastases, respectively, P = 0.55). The ILN can be appropriately classified as a regional lymph node in rectal and anal canal adenocarcinoma. Moreover, aggressive ILN dissection might be effective in improving the prognosis of low rectal and anal canal adenocarcinoma with ILN metastases; thus, prophylactic ILN dissection is unnecessary.
Types de publication
Observational Study
Multicenter Study
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
1150-1163Informations de copyright
© 2022 Association of Coloproctology of Great Britain and Ireland.
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