TY - JOUR
T1 - Significance of involvement by squamous cell carcinoma of the ducts of esophageal submucosal glands
T2 - Analysis of 201 surgically resected superficial squamous cell carcinomas
AU - Tajima, Yusuke
AU - Nakanishi, Yukihiro
AU - Tachimori, Yuji
AU - Kato, Hoichi
AU - Watanabe, Hiroshi
AU - Yamaguchi, Hajime
AU - Yoshimura, Kimio
AU - Kusano, Mitsuo
AU - Shimoda, Tadakazu
PY - 2000/7/15
Y1 - 2000/7/15
N2 - BACKGROUND. Ductal involvement (DI) is often observed in superficial squamous cell carcinoma of the esophagus (SSCCE), defined as carcinoma with invasion limited to the submucosa. The purpose of this study was to clarify the clinicopathologic significance of DI in SSCCE. METHODS. Two hundred one surgically resected lesions from 140 patients with SSCCE were examined histopathologically. Clinicopathologic factors, such as macroscopic type, tumor location, maximum tumor size, depth of invasion, lymphatic and blood vessel permeation, lymph node metastasis, and prognosis, were examined to investigate the association between these factors and the presence of DI. RESULTS. Of the 201 SSCCE lesions, 43 (21.3%) had 152 DIs (1-32 DIs per lesion). The DI always remained in situ, and there were no tumors showing submucosal invasion through the DI. As for the relation between clinicopathologic factors and the presence of DI, multivariate analysis showed only maximum tumor size to correlate with the presence of DI (P < 0.0001). There were no significant differences between DI negative and DI positive lesions in tumor location, macroscopic type, lymphatic and blood vessel permeation, lymph node metastasis, or prognosis. In 83 mucosal carcinomas, including in situ carcinomas or carcinomas that invaded no deeper than the lamina muscularis mucosa, no lymph node metastasis was found, and the 5-year survival rate was 100% (unaffected by the presence of DI). Among these 83 lesions, DI was found in 11 (13.13%), of which 6 (7.2%) had DI extending to the submucosal layer. CONCLUSIONS. These results indicate that DI as a pathway of tumor spread to the deeper layer is of little significance in squamous cell carcinoma of the esophagus, and that mucosal carcinomas with DI that extends to the submucosa should not be classified as submucosal carcinoma. (C) 2000 American Cancer Society.
AB - BACKGROUND. Ductal involvement (DI) is often observed in superficial squamous cell carcinoma of the esophagus (SSCCE), defined as carcinoma with invasion limited to the submucosa. The purpose of this study was to clarify the clinicopathologic significance of DI in SSCCE. METHODS. Two hundred one surgically resected lesions from 140 patients with SSCCE were examined histopathologically. Clinicopathologic factors, such as macroscopic type, tumor location, maximum tumor size, depth of invasion, lymphatic and blood vessel permeation, lymph node metastasis, and prognosis, were examined to investigate the association between these factors and the presence of DI. RESULTS. Of the 201 SSCCE lesions, 43 (21.3%) had 152 DIs (1-32 DIs per lesion). The DI always remained in situ, and there were no tumors showing submucosal invasion through the DI. As for the relation between clinicopathologic factors and the presence of DI, multivariate analysis showed only maximum tumor size to correlate with the presence of DI (P < 0.0001). There were no significant differences between DI negative and DI positive lesions in tumor location, macroscopic type, lymphatic and blood vessel permeation, lymph node metastasis, or prognosis. In 83 mucosal carcinomas, including in situ carcinomas or carcinomas that invaded no deeper than the lamina muscularis mucosa, no lymph node metastasis was found, and the 5-year survival rate was 100% (unaffected by the presence of DI). Among these 83 lesions, DI was found in 11 (13.13%), of which 6 (7.2%) had DI extending to the submucosal layer. CONCLUSIONS. These results indicate that DI as a pathway of tumor spread to the deeper layer is of little significance in squamous cell carcinoma of the esophagus, and that mucosal carcinomas with DI that extends to the submucosa should not be classified as submucosal carcinoma. (C) 2000 American Cancer Society.
KW - Ductal involvement
KW - Glandular involvement
KW - Multivariate analysis
KW - Squamous cell carcinoma
KW - Superficial esophageal carcinoma
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U2 - 10.1002/1097-0142(20000715)89:2<248::AID-CNCR7>3.0.CO;2-Q
DO - 10.1002/1097-0142(20000715)89:2<248::AID-CNCR7>3.0.CO;2-Q
M3 - Article
C2 - 10918152
AN - SCOPUS:0034661991
SN - 0008-543X
VL - 89
SP - 248
EP - 254
JO - Cancer
JF - Cancer
IS - 2
ER -
