Esophageal squamous cell carcinoma occurring in the surface epithelium over a benign tumor

Hiroyuki Kuwano, Noriaki Sadanaga, Masayuki Watanabe, Mitsuhiro Yasuda, Tadahiro Nozoe, Keizo Sugimachi

Research output: Contribution to journalArticlepeer-review

25 Citations (Scopus)

Abstract

The coexistence of a benign tumor and carcinoma in the same esophagus is uncommon, while the occurrence of carcinoma in the surface epithelium over a benign tumor is considered to be extremely rare. Among 587 patients with surgically resected esophageal cancer, the cases with carcinoma located over a benign tumor of the esophageal cancer, the cases with carcinoma located over a benign tumor of the esophagus were histopathologically investigated and the carcinogenesis of such cases was discussed. Only three cases were found to have esophageal squamous cell carcinoma located over benign tumors (two were leiomyomas and one was a lipoma). All three benign tumors protruded to the esophageal surface, and the carcinoma was located just over such tumors without coexisting epithelial dysplasia. Moreover, the epithelium, except for portions around these tumors, was intact in all three cases. From these findings it was suggested that chronic stimulation of the epithelium covering the benign tumors might have induced the carcinoma.

Original languageEnglish
Pages (from-to)268-272
Number of pages5
JournalJournal of Surgical Oncology
Volume59
Issue number4
DOIs
Publication statusPublished - Aug 1995

All Science Journal Classification (ASJC) codes

  • Surgery
  • Oncology

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