Pathological factors associated with non‐sentinel lymph node metastasis in early stage cervical cancer

Autor: Thiago Pereira Diniz, Bruna Tirapelli Gonçalves, Andrea Paiva Gadelha Guimarães, Lillian Yuri Kumagai, Louise De Brot, Carlos Chaves Faloppa, A. Menezes, Alexandre Andre Balieiro Anastacio da Costa, Levon Badiglian-Filho, Glauco Baiocchi, Henrique Mantoan
Rok vydání: 2021
Předmět:
Zdroj: Journal of Surgical Oncology. 123:1115-1120
ISSN: 1096-9098
0022-4790
DOI: 10.1002/jso.26341
Popis: Objective To analyze the predictive factors for non-sentinel lymph node (non-SLN) metastasis in early-stage cervical cancer. Methods We analyzed a series of 113 patients who underwent sentinel lymph node (SLN) mapping for cervical cancer. The SLNs were examined by immunohistochemistry (IHC) when the hematoxylin-eosin stain was negative. Results The overall bilateral detection rate was 81.5%, with a median of two SLNs resected. The study ultimately included 92 patients with SLNs that were mapped who had also undergone systematic pelvic lymph node dissection. Thirteen (14.1%) patients had positive SLNs, with a median of one positive SLN. Regarding the size of SLN metastasis, one (1.1%) had isolated tumor cells (ITC), seven (7.6%) had micrometastases, and five (5.4%) had macrometastases. Notably, 46.1% (6/13) had lymph node metastases detected only after IHC. Five (38.5%) cases had positive non-SLNs, with a median count of one positive lymph node. Parametrial invasion was the only risk factor for positive non-SLN (p = .045). Regarding the size of SLN metastasis, non-SLN involvement was present in the only case with ITC (1/1), 42.9% (3/7) of cases with micrometastases, and in 20% (1/5) with macrometastases. Conclusions Our data suggest that parametrial invasion correlates with the risk of non-SLN metastasis in cervical cancer.
Databáze: OpenAIRE