Published online Aug 15, 2019. doi: 10.4251/wjgo.v11.i8.642
Peer-review started: May 21, 2019
First decision: July 16, 2019
Revised: July 18, 2019
Accepted: August 3, 2019
Article in press: August 3, 2019
Published online: August 15, 2019
The Borrmann classification system is used to describe the macroscopic appearance of advanced gastric cancer, and Borrmann type IV disease is independently associated with a poor prognosis.
To evaluate the prognostic significance of lymphatic and/or blood vessel invasion (LBVI) combined with the Borrmann type in advanced proximal gastric cancer (APGC).
The clinicopathological and survival data of 440 patients with APGC who underwent curative surgery between 2005 and 2012 were retrospectively analyzed.
In these 440 patients, LBVI+ status was associated with Borrmann type IV, low histological grade, large tumor size, and advanced pT and pN status. The 5-year survival rate of LBVI+ patients was significantly lower than that of LBVI– patients, although LBVI was not an independent prognostic factor in the multivariate analysis. No significant difference in the prognosis of patients with Borrmann type III/LBVI+ disease and patients with Borrmann type IV disease was observed. Therefore, we proposed a revised Borrmann type IV (r-Bor IV) as Borrmann type III plus LBVI+, and found that r-Bor IV was associated with poor prognosis in patients with APGC, which outweighed the prognostic significance of pT status.
LBVI is related to the prognosis of APGC, but is not an independent prognostic factor. LBVI status can be used to differentiate Borrmann types III and IV, and the same approach can be used to treat r-Bor IV and Borrmann type IV.
Core tip: In this study, we found that lymphatic and/or blood vessel invasion (LBVI) + status was associated with Borrmann type IV, low histological grade, large tumor size, and advanced pT and pN status. The 5-year survival rate of LBVI+ patients was significantly lower than that of LBVI– patients. No significant difference was observed in the prognosis of Borrmann type III/LBVI+ disease and Borrmann type IV disease. Therefore, we proposed a revised Borrmann type IV (r-Bor IV) as Borrmann type III plus LBVI+, and found that r-Bor IV was associated with poor prognosis in patients with advanced proximal gastric cancer, which outweighed the prognostic significance of pT status.