Clinicopathologic features of surgically resected primary gastric lymphoma.
OBJECTIVE
To analyze the clinicopathologic characteristics of surgically resected gastric lymphoma patients.


METHODS
We retrospectively analyzed 57 surgically resected gastric lymphoma patients, dividing them into 2 subgroups: Low grade MALToma (the LG group), High grade MALToma and Diffuse large B cell lymphoma (the HG group).


RESULTS
The numbers of patients were: 20 in the LG group, 37 in the HG group. The diagnostic rate of gastroscopy was 34.8% at primary diagnosis and 50% including differential diagnoses. The positive rates of H pylori were similar between the 2 groups (68% vs 77%). Multiple lesions were found in 19.3%. The proportion of mucosal and submucosal lesions was 80.0%(16/20) in the LG group, and 24.3%(9/37) in the HG group (P<0.001). Lymph node invasion rates were 10.5%(2/19) in the LG group and 44.1%(15/34) in the HG group (P=0.031). The numbers of recurred patients were none in the LG group, and 8 in the HG group. By univariant analysis, group (P=0.024) and TNM stage (stage I, II vs stages III, IV, P=0.002) were found to be the significant risk factors. There was a tendency of higher recurrence rate in the subtotal gastrectomy group than in the total gastrectomy group (P=0.05).


CONCLUSIONS
The HG groups had a more advanced stage and a higher recurrence rate than the LG group. Although there was no difference between subtotal and total gastrectomies, more careful assessments of multiplicities and radical resections with lymph node dissections seem to be needed because of multiplicity and LN invasion even in LG group.
Kong
Seong-Ho
SH
Department of Surgery and Cancer Research Institute, Seoul National University College of Medicine, 28 Yongon-dong, Chongno-gu, Seoul, 110-744, Korea.
Kim
Min-A
MA
Park
Do-Joong
DJ
Lee
Hyuk-Joon
HJ
Lee
Hye-Seung
HS
Kim
Chul-Woo
CW
Yang
Han-Kwang
HK
Heo
Dae-Seog
DS
Lee
Kuhn-Uk
KU
Choe
Kuk-Jin
KJ
D000230:Adenocarcinoma / Q000401:mortality / Q000473:pathology / Q000601:surgery; D000328:Adult; D000368:Aged; D018572:Disease-Free Survival; D005260:Female; D005743:Gastrectomy; D016481:Helicobacter Infections / Q000401:mortality / Q000473:pathology; D006801:Humans; D016393:Lymphoma, B-Cell / Q000401:mortality / Q000473:pathology* / Q000601:surgery; D016403:Lymphoma, Large B-Cell, Diffuse / Q000401:mortality / Q000473:pathology* / Q000601:surgery; D008297:Male; D008875:Middle Aged; D012189:Retrospective Studies; D013274:Stomach Neoplasms / Q000401:mortality / Q000473:pathology* / Q000601:surgery; D016896:Treatment Outcome