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Diseases of Aquatic Organisms

    DAO prepress abstract   -  DOI: https://doi.org/10.3354/dao03496

    Seminoma in an adult striped dolphin Stenella coeruleoalba: tomographic, macroscopical, histological and immunohistochemical study

    P. J. Díaz-Santana, C. M. Súarez-Santana*, A. Fernández, A. Rambaldi, F. Consoli, R. Puig-Lozano, E. Sierra, A. Espinosa de los Monteros, M. Arbelo

    *Corresponding author:

    ABSTRACT: Testicular neoplasms are extensively described and characterized in domestic animals but reports in wildlife species, including marine mammals, are scarce. This case report describes a testicular seminoma in an adult striped dolphin Stenella coeruleoalba stranded along the coasts of the Canary Islands. Post-mortem computerized tomography (CT) showed a prominent enlargement of the cranial pole of the right testicle, displacing intestinal loops. Necropsy gross findings confirmed the presence of a testicular mass, bulging at cut surface, with multiple well delimitated whitish nodular lesions. Histologically, intratubular and diffuse neoplastic germinative cell proliferation was described. Complementary immunohistochemical assessments for vimentin and, CD117 were negative. To the author´s knowledge, this is the first seminoma described in a Stenella coeruleoalba. Finally, we suggest that post-mortem (PM) pre-necropsy CT in dolphins is a useful tool for anatomic guided pathology in such cases.