Clinicopathological Features and Prognostic Implication of Gastric Carcinoma with Lymphoid Stroma

Jung-Soo Pyo; Nae Yu Kim; Byoung Kwan Son; Hyo Young Lee; Il Hwan Oh; Kwang Hyun Chung

doi:10.1155/2020/6628412

Clinicopathological Features and Prognostic Implication of Gastric Carcinoma with Lymphoid Stroma

Gastroenterol Res Pract. 2020 Dec 3:2020:6628412. doi: 10.1155/2020/6628412. eCollection 2020.

Authors

Jung-Soo Pyo¹, Nae Yu Kim², Byoung Kwan Son³, Hyo Young Lee³, Il Hwan Oh³, Kwang Hyun Chung³

Affiliations

¹ Department of Pathology, Daejeon Eulji University Hospital, Eulji University School of Medicine, Daejeon, Republic of Korea.
² Department of Internal Medicine, Daejeon Eulji University Hospital, Eulji University School of Medicine, Daejeon, Republic of Korea.
³ Department of Internal Medicine, Nowon Eulji University Hospital, Eulji University School of Medicine, Seoul, Republic of Korea.

Abstract

Methods: This study included 34 eligible studies and 1757 GCLSs. The clinicopathologic characteristics of GCLS were investigated from eligible studies, and the meta-analysis was performed. In addition, we compared the survival rates between GCLS and non-GCLS.

Results: The estimated rate of GCLS was 0.062 (95% confidence interval (CI) 0.040-0.097). GCLS was significantly correlated with the diffuse type of Lauren's classification, proximal tumor location, less-frequent lymphatic invasion, and lower pTNM stage. However, there was no significant difference in age, sex, tumor differentiation, vascular invasion, perineural invasion, pT stage, lymph node metastasis, and distant metastasis between GCLS and non-GCLS patients. EBV positive rates in GCLS and non-GCLS patients were 0.723 (95% CI 0.643-0.791) and 0.064 (95% CI 0.039-0.103), respectively. HER2 expression in GCLS was significantly lower than that in non-GCLS. GCLS patients had a more favorable prognosis than that of non-GCLS patients (hazard ratio 0.500, 95% CI 0.305-0.821).

Conclusion: GCLS comprised 6.2% of overall GC and more frequent in the proximal portion of the stomach. Since GCLS was associated with better prognosis, the histologic finding can be useful for predicting the patient's prognosis.