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Intraocular signet-ring cell melanoma in a hamster (Cricetulus griseus)

Authors

  • Leandro Lima,

    1. Veterinary Medicine Department, Federal University of Paraná, Rua dos Funcionários, 1540 80035-050 Curitiba, PR, Brazil
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  • Fabiano Montiani-Ferreira,

    1. Veterinary Medicine Department, Federal University of Paraná, Rua dos Funcionários, 1540 80035-050 Curitiba, PR, Brazil
    2. Department of Small Animal Clinical Sciences, Michigan State University, D-208 Veterinary Medical Center, East Lansing, MI, 48824-1314 USA
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  • Renato Sousa,

    1. Veterinary Medicine Department, Federal University of Paraná, Rua dos Funcionários, 1540 80035-050 Curitiba, PR, Brazil
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  • Ingeborg Langohr

    1. Diagnostic Center for Population and Animal Health, 4125 Beaumont Road, Lansing, MI, 48910-8104 USA
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Address communication to:
F. Montiani-Ferreira
Tel.: 55 41 3350-5724
Fax: 55 41 3350-5625
e-mail: montiani@ufpr.br

Abstract

A two-and-a-half year-old male Chinese hamster (Cricetulus griseus) was referred for evaluation of an intraorbital mass involving the right eye.

Based on ophthalmic examination and ultrasonography, a diagnosis of intraocular neoplasia was made. Enucleation of the affected eye was performed. The mass was histologically diagnosed as a primary malignant intraocular signet-ring cell melanoma. No signs of recurrence were detected, and the hamster remained clinically healthy until it died 6 months after surgery. This case report attempts to contribute to the limited body of knowledge available in the literature on primary intraocular neoplasms in hamsters.

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