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Diseases of Aquatic Organisms

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DAO 82:249-252 (2008)  -  DOI:

A case of schwannoma in farmed seabream Sparus aurata

F. Marino1,3,*, A. Germanà2,3, A. Panebianco1

1Department of Veterinary Public Health, Section of Pathology and Section of Inspection of Food, 2Department of MOBIFIPA, Section of Morphology, and 3Centro di Ittiopatologia Sperimentale della Sicilia, Faculty of Veterinary Medicine, University of Messina, Polo Universitario dell’Annunziata, 98168 Messina, Italy

ABSTRACT: A tumour diagnosed as schwannoma with some unusual features affecting a single farmed seabream is described. The fish had a single mass on its back. The mass had well-defined limits and arose from the subcutis. The skin over the tumour was ulcerated. Histologically, the neoplasia consisted of Antoni Type A tissue forming irregularly dispersed bundles, within which a large number of fat cells was detected. No Antoni Type B tissue was observed. There was immunohistochemical evidence indicating a positive reaction of neoplastic cells tested with S-100 and calretinin. As far as we know, this is the first report of schwannoma in seabream.

KEY WORDS: Schwannoma · Tumour · Sparus aurata · Fish · Calretinin · Aquaculture

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Cite this article as: Marino F, Germanà A, Panebianco A (2008) A case of schwannoma in farmed seabream Sparus aurata. Dis Aquat Org 82:249-252.

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