Esophageal collision tumor (Large cell neuroendocrine carcinoma and papillary carcinoma) arising in a Barrett esophagus.

Wilson, C I; Summerall, J; Willis, I; Lubin, J; Inchausti, B C · Arch Pathol Lab Med · 2000

case_report · Level V

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Abstract

We report herein a unique case of an esophageal collision tumor composed of a papillary adenocarcinoma and a large cell neuroendocrine carcinoma arising in a Barrett esophagus. Hematoxylin-eosin and silver staining patterns, immunohistochemistry, and electron microscopy of the large cell neuroendocrine component are discussed.

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