Severe anisakiasis and cutaneous myxoma in a California yellowtail, <i>Seriola lalandi</i> Valenciennes

Keller, Martha; Han, S; Snekvik, Kevin

doi:10.1111/j.1365-2761.2011.01276.x

Cited by 10 publications

(4 citation statements)

References 11 publications

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“…The histo logical findings of the cases in this study, such as the presence of stellate, reticular, PAS-positive cells lying in a meta chromatic, alcianophilic mucoid ma trix, are consistent with myxoma (Sirtori 1954, Pulley & Stannard 1990, Manera & Biavati 1995. In fact, the tumours de scribed here resemble those reported in the carangid fish, the yellowtail amberjack Seriola lalandi (Keller et al 2011), as well as in domestic animals and humans. The location, close to or around the lateral line, and the histological features of the nerve sheath neoplasm described here, such as loosely arranged cells enclosed in a myxomatous stroma sometimes resembling Antoni type B tissue, suggest that this tumour originated from the peripheral nerves related to the lateral line system.…”

Section: Discussionsupporting

confidence: 78%

“…Myxomas are embryonic tumours of fibroblast origin that produce mucin (Smith et al 1972, Goldschmidt & Hendrick 2002 regardless of the origin of the fibroblast. Al though myxomas such as fibromyxoma and myxo sarcoma have been well described in numerous animal species, they have rarely been described in fish (Plehn 1906, M Intosh 1908, Johnstone 1926, Schlumberger & Lucke 1948, Stotk 1958, Honma 1965, Dawe & Harshbarger 1975, Manera & Biavati 1995, Keller et al 2011.…”

Section: Introductionmentioning

confidence: 99%

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Spontaneous multicentric myxoma of the dermal nerve sheaths in farmed European eels Anguilla anguilla

Gjurčević

Kužir²,

Sfacteria³

et al. 2014

Dis. Aquat. Org.

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This report describes a peripheral nerve sheath tumour in 8 European eels Anguilla anguilla L. from a fish farm located in Croatia. The newborn tissue appeared as smooth and soft skin nodules without pronounced colour change. Nodules were dome-shaped with a pale crater and were present on different body areas. In general, nodules were located as series of differently sized protrusions extending along the lateral line on both sides of the fish, as well as sensory canals on the head. Cut sections showed a homogeneous, pale white-grey texture. Histologically, the pathological tissue was located in the dermis, occasionally intruding into the hypodermis, and pushing as a space-occupying mass against the underlying muscle tissue without any evident boundaries. The pressure also caused changes in the overlying epidermis, such as atrophy, spongiosis and erosion. In some areas, the epidermis was 1 cell thick and club and goblet cells had completely disappeared. Ultimately, these changes resulted in shallow ulceration. Tumour tissue was characterized by a scant population of spindle or stellate cells, with oval, hyperchromatic nuclei and pale cytoplasm embedded in a copious myxoid matrix. Cells were arranged in fascicles and whorls, extending in a poorly defined manner among the dermal collagen bundles. Occasionally, adipose cells were also detected, mainly in the central portion of the bulges. Myxoid areas appeared rich in metachromatic and alcianophilic mucous ground substance. Reticular fibres and collagenous connective tissue were scarce. Immunohistochemistry (IHC) using antibodies against S-100 and glial fibrillary acidic protein caused a slight positive reaction in neoplastic dendritic cells. High magnification showed the immunostaining to be cytoplasmic in all tumour cells. IHC with anti-calretinin antibody gave only negative results. Macroscopic, histological, histochemical and immunohistochemical findings were consistent with a diagnosis of multicentric myxoma of the dermal nerve sheaths, a tumour not yet reported in fish.

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Section: Discussionsupporting

confidence: 78%

Section: Introductionmentioning

confidence: 99%

Spontaneous multicentric myxoma of the dermal nerve sheaths in farmed European eels Anguilla anguilla

Gjurčević

Kužir²,

Sfacteria³

et al. 2014

Dis. Aquat. Org.

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show abstract

“…In the present study, we observed a higher incidence among females than among males. Previous studies have also reported higher tumour prevalence in females than in males (Martineau et al 1990, Keller et al 2011, Pinkney et al 2014, although some studies reported a higher incidence in male than in female fish (Bowser et al 1988, Okihiro 1988, Kortet et al 2003, Korkea-aho et al 2006.…”

Section: Discussionmentioning

confidence: 97%

“…Cutaneous myxomas have been reported in Seriola lalandi (Keller et al 2011), Anguilla anguilla (Gjurcevic et al 2014), Arius jella (Singaravel et al 2016) and Carassius auratus (Shohrpoor et al 2016). We observed myxomatous lesions in pickhandle barracuda that were similar to those described by Keller et al (2011), who described bland spindle-shaped cells embedded in an abundant myxoid or mucoid extracellular matrix. Pathological examination of the disten ded non-invasive and exophytic neoplastic growths suggested a benign nature of these tumours in barracuda.…”

Section: Discussionmentioning

confidence: 99%

Oral neoplasms in pickhandle barracuda Sphyraena jello from India

Singaravel

Gopalakrishnan²,

Raja³

et al. 2017

Dis. Aquat. Org.

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We report the spontaneous occurrence of oral neoplasms in pickhandle barracuda Sphyraena jello Cuvier, 1829 from Parangipettai, on the southeast coast of India. A total of 11736 fish were examined, of which 43 were affected with oral tumours, with an overall prevalence of 0.37%. Gross and clinical symptoms included reddish to grayish-white distended tumourous growths on the gingiva, intra-oral bones and tongue. The tumours exhibited delayed eruption and intra-or extra-oral swelling, varied in consistency from extremely firm to fleshy and released mucinous material. The majority of tumours consisted of numerous clumped toothlets, but some included hardened tissues. Local area invasion/transmission was observed in most cases; however, necropsy examination revealed no gross evidence of distant metastasis into visceral organs. Radiographic examination of compound odontomas revealed distinct unilocular radio-opaque minitoothlets surrounded by defined radiolucency, whereas complex odontomas exhibited unilocular and indistinct radio-opaque masses within a much more extensive radiolucent zone. Histopathologically, the intra-oral tumour lesions were characterized by numerous imperfect (germ) toothlets consisting of a disorganized combination of dental tissues: pulp tissues with manifested and predominantly mixed hard dental tissues of immature dentine and enamel, numerous small to large and round to polyhedral ossicles embedded in hypocellular fibrous stromal tissues and sparsely spaced bland spindloid cells with cleft-like spaces of loose mucoid stroma. Histochemically, the neoplastic lesions stained positive for periodic acid-Schiff and Masson's trichrome. Based on the clinical and histological findings, the tumours were diagnosed as compound odontomas, complex odontomas, odontogenic myxomas, lingual myxomas and psammomatoid ossifying fibromas.

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The case report on cutaneous myxoma or invasive myxomatosis in Blackfin sea catfish (Arius jella Day, 1877)

et al. 2015

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Severe anisakiasis and cutaneous myxoma in a California yellowtail, Seriola lalandi Valenciennes

Cited by 10 publications

References 11 publications

Spontaneous multicentric myxoma of the dermal nerve sheaths in farmed European eels Anguilla anguilla

Spontaneous multicentric myxoma of the dermal nerve sheaths in farmed European eels Anguilla anguilla

Oral neoplasms in pickhandle barracuda Sphyraena jello from India

The case report on cutaneous myxoma or invasive myxomatosis in Blackfin sea catfish (Arius jella Day, 1877)

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