LINGUAL SQUAMOUS CELL CARCINOMA IN A CALIFORNIA SEA LION (ZALOPHUS CALIFORNIANUS)

Tsuneo Sato; Tomomi Higuchi; Hisashi Shibuya; Shigeo Ohba; Sadao Nogami; Wataru Shirai; Hideaki Watanabe; Shigeaki Honda

doi:10.1638/1042-7260(2002)033[0367:LSCCIA]2.0.CO;2

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Tsuneo Sato, Tomomi Higuchi, Hisashi Shibuya, Shigeo Ohba, Sadao Nogami, Wataru Shirai, Hideaki Watanabe, Shigeaki Honda

Abstract

A 28-yr-old female California sea lion (Zalophus californianus) in a commercial aquarium developed an ulcerated lingual tumor and died. Necropsy revealed a moderately differentiated squamous cell carcinoma. Immunohistochemical staining and electron microscopic studies revealed that the tumor cells were strongly positive with anti–keratin-cytokeratin antibody and had abundant tonofibrils and desmosomes. The neoplasm had metastasized to a mandibular lymph node.

Citation Download Citation

Tsuneo Sato, Tomomi Higuchi, Hisashi Shibuya, Shigeo Ohba, Sadao Nogami, Wataru Shirai, Hideaki Watanabe, and Shigeaki Honda "LINGUAL SQUAMOUS CELL CARCINOMA IN A CALIFORNIA SEA LION (ZALOPHUS CALIFORNIANUS)," Journal of Zoo and Wildlife Medicine 33(4), 367-370, (1 December 2002). https://doi.org/10.1638/1042-7260(2002)033[0367:LSCCIA]2.0.CO;2

Received: 28 December 2001; Published: 1 December 2002

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