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Diseases of Aquatic Organisms

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DAO 140:97-101 (2020)  -  DOI: https://doi.org/10.3354/dao03496

NOTE
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

Veterinary Histology and Pathology, Atlantic Center of Cetacean Research, University Institute of Animal Health and Food Safety (IUSA), Veterinary School, University of Las Palmas de Gran Canaria, Las Palmas de Gran Canaria, Spain
*Corresponding author:

ABSTRACT: Testicular neoplasms have been 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 the intestinal loops. Necropsy gross findings confirmed the presence of a testicular mass, bulging at the 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 antibodies were negative. To the authors’ knowledge, this is the first seminoma described in a S. coeruleoalba. We suggest that post-mortem (PM) pre-necropsy CT in dolphins is a useful tool for anatomic-guided pathology in such cases.


KEY WORDS: Cetacean · Testicular neoplasm · Seminoma · Computerized axial tomography · Dolphin · Stenella coeruleoalba


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Cite this article as: Díaz-Santana PJ, Súarez-Santana CM, Fernández A, Rambaldi A and others (2020) Seminoma in an adult striped dolphin Stenella coeruleoalba: tomographic, macroscopical, histological and immunohistochemical study. Dis Aquat Org 140:97-101. https://doi.org/10.3354/dao03496

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