Esophageal Adenosquamous Carcinoma in a Cat

  • SHINOZUKA Junko
    Department of Veterinary Pathology, Graduate School of Agricultural and Life Sciences, The University of Tokyo
  • NAKAYAMA Hiroyuki
    Department of Veterinary Pathology, Graduate School of Agricultural and Life Sciences, The University of Tokyo
  • UZUKI Michio
    Department of Veterinary Pathology, Graduate School of Agricultural and Life Sciences, The University of Tokyo
  • EJIRI Noriko
    Department of Veterinary Pathology, Graduate School of Agricultural and Life Sciences, The University of Tokyo
  • UETSUKA Koji
    Department of Veterinary Pathology, Graduate School of Agricultural and Life Sciences, The University of Tokyo
  • MOCHIZUKI Manabu
    Department of Veterinary Surgery, Graduate School of Agricultural and Life Sciences, The University of Tokyo
  • NISHIMURA Ryohei
    Department of Veterinary Surgery, Graduate School of Agricultural and Life Sciences, The University of Tokyo
  • SASAKI Nobuo
    Department of Veterinary Surgery, Graduate School of Agricultural and Life Sciences, The University of Tokyo
  • DOI Kunio
    Department of Veterinary Pathology, Graduate School of Agricultural and Life Sciences, The University of Tokyo

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Abstract

Esophageal carcinoma was observed in an eight-year-old, castrated male, Japanese domestic cat. Histologically, this neoplasm consisted of two different growth patterns, squamous cell carcinoma and adenocarcinoma. The results of immunohistochemical examination supported the fact that the two kinds of neoplastic cells have different characteristics. The tumor was, therefore, diagnosed as adenosquamous carcinoma. Esophageal tumors in the cat are very rare and, if any, neither adenocarcinoma nor adenosquamous carcinoma has been reported up to the present.

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