Disseminated neoplasia in blue mussels Mytilus galloprovincialis, from the Black Sea, Romania

Corina Ciocan, Inke Sunila

Research output: Contribution to journalArticle

Abstract

Disseminated neoplasia, also called leukemia or hemic neoplasia, has been detected in 15 species of marine bivalve mollusks
worldwide. The disease is characterized by the presence of single anaplastic cells with enlarged nuclei and sometimes frequent mitosis, in hemolymph vessels and sinuses. The neoplastic cells gradually replace normal hemocytes leading to the increased mortality of animals. The neoplasia reaches epizootic prevalences in blue mussels, Mytilus trossulus, in some areas, whereas prevalences in Mytilus edulis are generally very low. Mytilus galloprovincialis was suggested to be resistant to the disease although very low prevalences were documented from Spain in the Atlantic Ocean and Italy in the Mediterranean Sea. A case of disseminated neoplasia was discovered in M. galloprovincialis from among 200 specimens studied from the coast of the Romanian Black Sea. Histological preparation revealed the presence of large anaplastic cells with lobed nuclei. This observation extends the geographic range of marine bivalve mollusks with disseminated neoplasia to include the Black Sea.
Original languageEnglish
Pages (from-to)1335-1339
JournalMarine Pollution Bulletin
Volume50
Issue number11
DOIs
Publication statusPublished - 8 Jun 2005

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Mytilus galloprovincialis
Romania
Black Sea
Mytilus edulis
neoplasms
Bivalvia
Mytilus trossulus
sinuses
hemocytes
leukemia
Atlantic Ocean
mitosis
hemolymph
Italy
Spain
cells
coasts
blood
animals

Cite this

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title = "Disseminated neoplasia in blue mussels Mytilus galloprovincialis, from the Black Sea, Romania",
abstract = "Disseminated neoplasia, also called leukemia or hemic neoplasia, has been detected in 15 species of marine bivalve mollusksworldwide. The disease is characterized by the presence of single anaplastic cells with enlarged nuclei and sometimes frequent mitosis, in hemolymph vessels and sinuses. The neoplastic cells gradually replace normal hemocytes leading to the increased mortality of animals. The neoplasia reaches epizootic prevalences in blue mussels, Mytilus trossulus, in some areas, whereas prevalences in Mytilus edulis are generally very low. Mytilus galloprovincialis was suggested to be resistant to the disease although very low prevalences were documented from Spain in the Atlantic Ocean and Italy in the Mediterranean Sea. A case of disseminated neoplasia was discovered in M. galloprovincialis from among 200 specimens studied from the coast of the Romanian Black Sea. Histological preparation revealed the presence of large anaplastic cells with lobed nuclei. This observation extends the geographic range of marine bivalve mollusks with disseminated neoplasia to include the Black Sea.",
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Disseminated neoplasia in blue mussels Mytilus galloprovincialis, from the Black Sea, Romania. / Ciocan, Corina; Sunila, Inke.

In: Marine Pollution Bulletin, Vol. 50, No. 11, 08.06.2005, p. 1335-1339.

Research output: Contribution to journalArticle

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