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      Outcome of superficial squamous cell carcinoma of the esophagus: a clinicopathological study

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          Abstract

          PURPOSE: To analyze the clinicopathological features and outcome of patients with pathologically proven superficial squamous cell carcinoma of the esophagus. METHODS: A total of 234 consecutive cases of esophageal carcinoma in a 15-year period were reviewed. RESULTS: Superficial esophageal cancer was found in five patients (2.1%). They were four men and one woman and the mean age was 52.5 years. Smoking and alcohol were the main risk factors. Achalasia due to Chagas disease occurred in one patient and a second primary tumor developed in the larynx in another patient. Four patients underwent esophagectomy and one patient received chemoradiotherapy. The histopathologic diagnosis was of squamous cell carcinoma in all cases. Intramucosal tumor (Tis) was identified in three cases and superficially invasive carcinoma in two cases. Four patients are free of disease with survival times of two, four, six and nine years. The patient who developed laryngeal cancer died six years after esophagectomy. CONCLUSION: Long-term survival in patients with esophageal cancer is related to early diagnosis. Therefore, a less aggressive surgical approach, such as endoscopic resection, may be a good option for these patients, if depth of tumor invasion can be accurately predicted by the new imaging tools.

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          Mucosal iodine staining improves endoscopic visualization of squamous dysplasia and squamous cell carcinoma of the esophagus in Linxian, China.

          R Taylor, S Dawsey, K Lewin … (1998)
          In previous studies in the high risk population of Linxian, China, the majority of foci of high grade (moderate and severe) squamous dysplasia (HGD) and invasive squamous carcinoma (CA) of the esophagus were associated with endoscopically visible lesions that could be targeted for biopsy, but some foci of HGD were missed by routine endoscopic examination. This study examined whether spraying the mucosa with Lugol's iodine solution, which stains normal epithelium brown but leaves dysplasia and carcinoma unstained, could improve endoscopic detection and delineation of these lesions. Two hundred twenty-five Linxian adults with balloon cytologic evidence of dysplasia or carcinoma underwent endoscopy. All visible lesions were described and photographed before and after staining with 1.2% Lugol's iodine solution. Biopsies were taken from all lesions visible before staining, from all unstained lesions (USLs) after applying the stain, and from representative control areas of stained mucosa. Two hundred fifty-three USLs and 255 control sites were biopsied. No complications occurred. Ninety-four biopsy sites contained HGD and 20 contained CA. Before staining, the sensitivity of visible lesions for identifying HGD or CA was 62%, and the specificity was 79%. After staining, the sensitivity of USLs for identifying HGD or CA was 96%, and the specificity was 63%. Eighty-eight percent of the HGD and CA lesions were larger or more clearly defined after staining. The diagnostic lesions in 17 of 31 patients with moderate dysplasia (55%), 8 of 35 patients with severe dysplasia (23%), and none of the 19 patients with invasive carcinoma (0%) were identified only after staining. Mucosal iodine staining improved endoscopic detection and delineation of HGD and CA in these patients. This simple technique is highly sensitive for identifying these precursor and invasive squamous lesions, and it should be used whenever optimal visualization of squamous mucosal abnormalities is required.
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            Prospective evaluation of narrow-band imaging endoscopy for screening of esophageal squamous mucosal high-grade neoplasia in experienced and less experienced endoscopists.

            Ryu Ishihara, Shingo Ishiguro, Takuya Inoue … (2010)
            Narrow-band imaging (NBI) is a novel, noninvasive optical technique that uses reflected light to visualize the organ surface. However, few prospective studies that examine the efficacy of NBI screening for esophageal cancer have been reported. To compare the diagnostic yield of NBI endoscopy for screening of squamous mucosal high-grade neoplasia of the esophagus between experienced and less experienced endoscopists. Patients with a history of esophageal neoplasia or head and neck cancer received NBI endoscopic screening for esophageal neoplasia followed by chromoendoscopy using iodine staining. Biopsy specimens were taken from iodine-unstained lesions and the histological results of mucosal high-grade neoplasias served as the reference standard. The primary outcome was the sensitivity of NBI for detecting new lesions. The secondary outcome was the positive predictive value of NBI and the sensitivity, specificity, positive predictive value, negative predictive value, and accuracy of NBI in a per lesion basis. A total of 350 patients (170 by experienced endoscopists and 180 by less experienced endoscopists) underwent endoscopic examination. A total of 42 new mucosal high-grade neoplastic lesions (25 in the experienced endoscopist group and 17 in the less experienced endoscopist group) were detected. In the per-lesion-based analysis, the sensitivity was significantly higher in the experienced endoscopist group (100%; 25/25) compared with the less experienced endoscopist group (53%; 9/17) (P < 0.001). The positive predictive value of NBI was higher in the experienced endoscopist group than in the less experienced endoscopist group (45%, 25/55 vs. 35%, 9/26), although the difference was not significant (P = 0.50). The sensitivity of NBI in the less experienced endoscopist group was 43% in the former half of patients, and increased to 60% in the latter half of patients. In the per-patient-based analysis, the sensitivity of NBI was significantly higher in the experienced endoscopist group (100%) than in the less experienced endoscopist group (100 vs. 69%, respectively; P = 0.04). The positive predictive values of the experienced endoscopist group and the less experienced endoscopist group were similar, and were 48 and 47%, respectively. In conclusion, compared with the gold standard of chromoendoscopy with iodine staining, the sensitivity of NBI for screening of mucosal high-grade neoplasia was 100% with the experienced endoscopists but was low with the less experienced endoscopists. Electronic chromoendoscopy with NBI is a promising screening tool in these high-risk patients with esophageal mucosal high-grade neoplasia, particularly when performed by endoscopists with experience of using NBI.
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              Long-term outcome after endoscopic mucosal resection in patients with esophageal squamous cell carcinoma invading the muscularis mucosae or deeper.

              Yuichi Shimizu, Hiroyuki Tsukagoshi, Masahiro Fujita … (2002)
              Endoscopic mucosal resection is recommended for squamous cell carcinoma of the esophagus confined to the lamina propria. However, endoscopic mucosal resection is often performed in patients with tumors that invade the muscularis mucosa or upper submucosa to minimize surgical invasiveness, despite the increased risk of lymph node metastasis. This study prospectively evaluated long-term outcome in such patients. Twenty-six consecutive patients with squamous cell esophageal carcinoma invading the muscularis mucosa or submucosa who underwent endoscopic mucosal resection from June 1992 through March 2000 (extended endoscopic mucosal resection group) were studied. As control group, 44 consecutive patients with esophageal carcinoma invading the muscularis mucosae or upper third of the submucosa and no preoperative evidence of lymph node metastasis who underwent esophagectomy during the same period (surgical resection group) were studied. Overall survival rates at 5 years in the extended endoscopic mucosal resection group and surgical resection group were, respectively, 77.4% and 84.5%. There was no significant difference between survival distributions. Cause-specific survival rates at 5 years in extended endoscopic mucosal resection and surgical resection groups were, respectively, 95.0% and 93.5%. Survival curves for the groups were similar. Although patients were not randomized to extended endoscopic mucosal resection or surgical resection in this study, the results suggest that endoscopic mucosal resection may be safe and effective for management of squamous cell esophageal carcinoma invading the muscularis mucosae or upper submucosa.
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                Author and article information

                Journal
                Journal ID (publisher-id): acb
                Title: Acta Cirúrgica Brasileira
                Abbreviated Title: Acta Cir. Bras.
                Publisher: Sociedade Brasileira para o Desenvolvimento da Pesquisa em Cirurgia (São Paulo, SP, Brazil )
                ISSN (Print): 0102-8650
                ISSN (Electronic): 1678-2674
                Publication date (Print and electronic): May 2013
                Volume: 28
                Issue: 5
                Pages: 373-378
                Affiliations
                [03] Botucatu SP orgnameUNESP orgdiv1Botucatu Medical School orgdiv2Investigative Pathology Division Brazil
                [02] MG orgnameTriangulo Mineiro University orgdiv1Faculty of Medicine orgdiv2Department of Surgery, Gastroenterology Surgery Division Brazil
                [01] orgnameUNESP orgdiv1Botucatu Medical School orgdiv2Department of Surgery
                Article
                Publisher ID: S0102-86502013000500009 Publisher ID: S0102-8650(13)02800500009
                DOI: 10.1590/S0102-86502013000500009
                SO-VID: 0a6115c0-e65d-407a-99b9-755dcccbc4b4
                License:

                This work is licensed under a Creative Commons Attribution 4.0 International License.

                History
                Date received : 23 January 2013
                Date accepted : 22 April 2013
                Date revision received : 21 March 2013
                Page count
                Figures: 0, Tables: 0, Equations: 0, References: 25, Pages: 6
                Product

                SciELO Brazil

                Categories
                Subject: Original Articles

                Keywords: Early Detection of Cancer,Carcinoma,Squamous Cell,Esophageal Neoplasms
                Data availability:
                Keywords: Early Detection of Cancer, Carcinoma, Squamous Cell, Esophageal Neoplasms

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