Lymphovascular invasion as a tool to further subclassify T1b esophageal adenocarcinoma

Cancer
Putao CenJaffer A Ajani

Abstract

Lymphovascular invasion (LVI) and/or lymph node metastases (LNM) adversely influence the overall survival (OS) of patients with T1 esophageal adenocarcinoma. Although endoscopic therapy may be adequate for patients with T1a cancer, patients with T1b cancer require esophagectomy/lymphadenectomy. The authors hypothesized that LVI status would subclassify T1b cancers and facilitate new therapeutic strategies. Ninety-nine consecutive patients with T1 adenocarcinoma were analyzed after they underwent esophagectomy/lymphadenectomy. LNM was assessed in all patients, and LVI was assessed in 89 patients. OS was correlated with pathologic cancer stage in association with LVI and LNM. The 5-year OS rate for patients with T1a tumors (88%) was superior to that for patients with T1b tumors (62%; P = .001). The 5-year OS rate for patients who had cancers without LVI (85%) was superior to the rate for patients who had cancers with LVI (36%; P = .0001). It is noteworthy that, for cancers without LVI, the 5-year OS rate for patients with T1b tumors (77%) was similar to the rate for patients with T1a tumors (90%; P = .08), but it was superior to the rate for patients with T1b tumors that had LVI (27%; P = .006). The presence of LVI and/or LNM res...Continue Reading

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