DAO 96:259-264 (2011)  -  DOI: https://doi.org/10.3354/dao02378

NOTE
Multicentric infiltrative lipoma in a farmed Mediterranean seabass Dicentrarchus labrax: a pathological and biochemical case study

F. Marino1,*, B. Chiofalo2, G. Mazzullo1, A. Panebianco

1Department of Veterinary Public Health and 2Department of Morphology, Biochemistry, Physiology and Animal Production, Faculty of Veterinary Medicine, University of Messina, Polo Universitario dell’Annunziata, 98168 Messina, Italy

ABSTRACT: A tumour diagnosed as multicentric infiltrative lipoma affecting a single farmed seabass is described. The fish had 3 masses on the lateral side of its back, deforming the skin surface. The masses showed a tendency to invade the underlying musculature. Histologically, the neoplasm consisted of differentiated adipocytes. Biochemically, the neoplastic tissue showed lower values of monounsaturated fatty acids and higher values of polyunsaturated fatty acids compared with adjacent normal muscular tissue, particularly of the n3 series, such as eicosapentanoic (C20:5n3) and docosahexanoic (C22:6n3) acids. Data obtained suggest a metabolic disturbance in the lipid component of the muscular tissue metabolic pathway, which could be the starting point to promote lipoma formation. This is the first report of lipoma in Mediterranean seabass.


KEY WORDS: Lipoma · Tumour · Seabass · Fatty acid


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Cite this article as: Marino F, Chiofalo B, Mazzullo G, Panebianco A (2011) Multicentric infiltrative lipoma in a farmed Mediterranean seabass Dicentrarchus labrax: a pathological and biochemical case study. Dis Aquat Org 96:259-264. https://doi.org/10.3354/dao02378

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