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We summarized and analyzed the characteristics of 17 PMME patients (with average age of 57.5\u2009\u00b1\u200910.3 years) who had received surgical resection in our center. The majority (13\/17, 76.5%) of the patients were male. The percentage of patients with smoking and alcohol consumption was 41.2% and 23.5%, respectively. The preoperative diagnosis rate was 35.3%. Lymph node metastasis mainly involved the mid-lower mediastinal and upper abdominal area. Primary tumors that invaded beyond the submucosa layer (T2\u2013T4) had much higher tendency of lymph node metastasis than those restricted to the submucosa layer (T1) (6\/8, 75.0% vs. 3\/9, 33.3%,\n                    <jats:italic>p<\/jats:italic>\n                    \u2009=\u20090.086). The 1-year and 5-year survival rate of the patients was 51% and 10%, respectively, with median survival time being 18.1 months. Survival analysis showed that TNM stage was a predictor for PMME prognosis (median survival time of 47.3 months vs. 8.0 months for stage I\/II vs. stage III, respectively,\n                    <jats:italic>p<\/jats:italic>\n                    \u2009=\u20090.018), and multivariable Cox regression analysis revealed the independence of its prognostic value [HR (95% CI): 5.678 (1.125\u201328.658),\n                    <jats:italic>p<\/jats:italic>\n                    \u2009=\u20090.035].\n                  <\/jats:p>","DOI":"10.1038\/srep23804","type":"journal-article","created":{"date-parts":[[2016,4,1]],"date-time":"2016-04-01T05:52:36Z","timestamp":1459489956000},"update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":38,"title":["Characteristics and Surgical Outcomes for Primary Malignant Melanoma of the Esophagus"],"prefix":"10.1038","volume":"6","author":[{"given":"Shugeng","family":"Gao","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jiagen","family":"Li","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Xiaoli","family":"Feng","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Susheng","family":"Shi","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jie","family":"He","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"297","published-online":{"date-parts":[[2016,4,1]]},"reference":[{"key":"BFsrep23804_CR1","first-page":"1475","volume":"84","author":"S Sabanathan","year":"1989","unstructured":"Sabanathan, S., Eng, J. & Pradhan, G. 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