Inter-Research > DAO > v137 > n3 > p211-216  
Diseases of Aquatic Organisms

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DAO 137:211-216 (2020)  -  DOI:

Gastric leiomyoma in a sea bass Dicentrarchus labrax broodfish

C. Iaria1,*, F. Capparucci1, G. De Benedetto2, S. Natale1, R. Panebianco3, R. Puleio4, G. Lanteri2

1Dept. of Chemical, Biological, Pharmaceutical and Environmental Sciences, via F. Stagno d’Alcontres 31, University of Messina, 98165 Messina, Italy
2Dept. of Veterinary Sciences, University of Messina, Polo Universitario dell’Annunziata, 98168 Messina, Italy
3Panittica Italia, Via Del Procaccio, Fasano, BR 72015, Italy
4Zooprophylactic Institute of Sicily (IZS), Via G. Marinuzzi, 3, 90129 Palermo, Italy
*Corresponding author:

ABSTRACT: This report describes a spontaneously arising non-infiltrative neoplasm of gastric tunica muscularis in a broodstock sea bass Dicentrarchus labrax from an Italian aquaculture farm. Microscopically, the mass was circumscribed and non-encapsulated and was composed of spindle cells arranged in parallel interlacing bundles or, occasionally, a whirling pattern. Cells had a small quantity of eosinophilic cytoplasm with distinct cell borders. Neoplastic cells were immuno-reactive with smooth muscle actin, vimentin and desmin; S100 was negative. The mucosal epithelium was intact with no neoplastic involvement. A gastric leiomyoma was diagnosed based on the findings. More efforts should be made to study the possible etiology of leiomyoma affecting fish from aquaculture.

KEY WORDS: Fish · Leiomyoma · Tumors · Broodstock

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Cite this article as: Iaria C, Capparucci F, De Benedetto G, Natale S, Panebianco R, Puleio R, Lanteri G (2020) Gastric leiomyoma in a sea bass Dicentrarchus labrax broodfish. Dis Aquat Org 137:211-216.

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