Deep Granulomatous Dermatitis of the Fin Caused by &lt;i&gt;Fusarium solani&lt;/i&gt; in a False Killer Whale (&lt;i&gt;Pseudorca crassidens&lt;/i&gt;)

Tanaka, Miyuu; Izawa, Takeshi; Kuwamura, Mitsuru; Nakao, Tatsuko; Maezono, Yuko; Ito, Shu; Murata, Michiko; Murakami, Masaru; Sano, Ayako; Yamate, Jyoji

doi:10.1292/jvms.11-0421

Cited by 17 publications

(14 citation statements)

References 11 publications

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“…While not detected histologically in this study, other known aetiological agents of skin nodules in odontocetes include fungi (Lacazia loboi, Fusarium spp., Paracoccidioides bra siliensis and Trichophyton spp.) and the bacteria Streptococcus iniae (Caldwell et al 1975, Frasca et al 1996, Bonar & Wagner 2003, Esperón et al 2012, Tanaka et al 2012 (Kannan et al 2005). By depressing the immune system these compounds increase the risk of infectious diseases in marine mammals (Aguilar & Borrell 1994, Ross et al 2000, Hall et al 2006, Reif et al 2009).…”

Section: Discussionmentioning

confidence: 99%

Section: Malaysiamentioning

confidence: 99%

“…While not detected histologically in this study, other known aetiological agents of skin nodules in odontocetes include fungi (Lacazia loboi, Fusarium spp., Paracoccidioides bra siliensis and Trichophyton spp.) and the bacteria Streptococcus iniae (Caldwell et al 1975, Frasca et al 1996, Bonar & Wagner 2003, Esperón et al 2012, Tanaka et al 2012.Cutaneous nodules were encountered in all 6 Orca ella brevirostris populations examined in Ma laysia, India and Bangladesh, with minimal prevalence levels varying between 2.2 and 13.9%. In addition, they were also observed in the critically endangered sub-population from the Mahakam River, East Kalimantan, Indonesia (D. Kreb, pers.…”

mentioning

confidence: 94%

“…The fungi Lacazia loboi, Fusarium spp., Paracoccidioides brasiliensis and Trichophyton spp. have been identified as the aetiological agents of some nodular disorders (Caldwell et al 1975, Frasca et al 1996, Van Bressem et al 2007a, Esperón et al 2012, Tanaka et al 2012). Immune dysfunction is also known to play a role in the pathogenesis of L. loboi disease in coastal common bottlenose dolphins Tursiops truncatus from Florida, USA (Reif et al 2009, Murdoch et al 2010.…”

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confidence: 99%

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Cutaneous nodules in Irrawaddy dolphins: an emerging disease in vulnerable populations

Bressem¹,

Minton²,

Sutaria³

et al. 2014

Dis. Aquat. Org.

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The presence of cutaneous nodules is reported in vulnerable populations of Irrawaddy dolphins Orcaella brevirostris from Malaysia (Kuching, Bintulu-Similajau, KinabatanganSegama and Penang Island), India (Chilika Lagoon) and Bangladesh (Sundarbans). Approximately 5700 images taken for photo-identification studies in 2004 to 2013 were examined for skin disorders. Nodules were detected in 6 populations. They appeared as circumscribed elevations of the skin and varied in size from 2 to > 30 mm, were sparse or numerous and occurred on all visible body areas. In 8 photo-identified (PI) dolphins from India and Malaysia, the lesions remained stable (N = 2) or progressed (N = 6) over months but did not regress. The 2 most severely affected individuals were seen in Kuching and the Chilika Lagoon. Their fate is unknown. Cutaneous nodules were sampled in a female that died in a gillnet in Kuching in 2012. Histologically, the lesions consisted of thick collagen bundles covered by a moderately hyperplasic epithelium and were diagnosed as fibropapillomas. Whether the nodules observed in the other O. brevirostris were also fibropapillomas remains to be investigated. Disease prevalence ranged from 2.2% (N = 46; Bintulu-Similajau) to 13.9% (N = 72; Chilika) in 4 populations from Malaysia and India. It was not significantly different in 3 study areas in eastern Malaysia. In Chilika, prevalence was significantly higher (p = 0. well et al. 1975, Kiszka et al. 2009, Reif et al. 2009, Van Bressem et al. 2009b. In some small communities of inshore and estuarine populations, these pathologies are highly prevalent, may progress to cover extensive body areas and have been associated with the death or disappearance of severely affected individuals, including calves (Simões-Lopes et al. 1993, Van Bressem et al. 2007a, Kiszka et al. 2009, Daura-Jorge & Simões-Lopes 2011. However, their impact on the long-term viability of affected communities is still vastly unknown. The fungi Lacazia loboi, Fusarium spp., Paracoccidioides brasiliensis and Trichophyton spp. have been identified as the aetiological agents of some nodular disorders (Caldwell et al. 1975, Frasca et al. 1996, Van Bressem et al. 2007a, Esperón et al. 2012, Tanaka et al. 2012). Immune dysfunction is also known to play a role in the pathogenesis of L. loboi disease in coastal common bottlenose dolphins Tursiops truncatus from Florida, USA (Reif et al. 2009, Murdoch et al. 2010.Irrawaddy dolphins Orcaella brevirostris occur in large rivers and marine appended lakes in South Asia, as well as in the coastal waters of the Indo-Pacific Ocean (Smith 2009). Estuarine and nearshore populations are distributed in tropical and subtropical waters of the Indo-Pacific Ocean, from eastern India to the Philippines (Dolar et al. 2002, Minton et al. 2011. Riverine populations have been documented in 3 major river systems: the Mahakam (Indonesia), the Ayeyarwady (Myanmar) and the Mekong (Laos, Cambodia and Vietnam) (Smith 2009). Their habitat preference exposes them to multiple anthropog...

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Section: Discussionmentioning

confidence: 99%

Section: Malaysiamentioning

confidence: 99%

“…While not detected histologically in this study, other known aetiological agents of skin nodules in odontocetes include fungi (Lacazia loboi, Fusarium spp., Paracoccidioides bra siliensis and Trichophyton spp.) and the bacteria Streptococcus iniae (Caldwell et al 1975, Frasca et al 1996, Bonar & Wagner 2003, Esperón et al 2012, Tanaka et al 2012.Cutaneous nodules were encountered in all 6 Orca ella brevirostris populations examined in Ma laysia, India and Bangladesh, with minimal prevalence levels varying between 2.2 and 13.9%. In addition, they were also observed in the critically endangered sub-population from the Mahakam River, East Kalimantan, Indonesia (D. Kreb, pers.…”

mentioning

confidence: 94%

mentioning

confidence: 99%

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Cutaneous nodules in Irrawaddy dolphins: an emerging disease in vulnerable populations

Bressem¹,

Minton²,

Sutaria³

et al. 2014

Dis. Aquat. Org.

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“…of fungus are common saprophytes found in soil, air, and water that can be severe plant pathogens (Zhang et al 2006). Superficial and systemic infections also have been described in a variety of terrestrial and aquatic animal groups, including invertebrates (Burns et al 1979, Bian & Egusa 1981, Santana-Neto et al 2010, Salter et al 2012, reptiles (Cabañes et al 1997, Rose et al 2001, Dadone et al 2010, Sarmiento-Ramírez et al 2010, Williams et al 2012, amphibians (Perpiñán et al 2010), fish (Ostland et al 1987, Smith et al 1989, Crow et al 1995, marine mammals (Montali et al 1981, Frasca et al 1996, Clauss et al 2008, Staggs et al 2010, Naples et al 2012, Tanaka et al 2012, and domestic animals (Evans et al 2004, Namitome et al 2011. Fusariosis in humans may be disseminated or locally invasive and usually causes disease in immunocompromised patients (Hiemenz et al 1990, Gupta et al 2000, Anaissie et al 2001, Dignani & Anaissie 2004, Gutiérrez Paredes et al 2011.…”

Section: Abstract: Limulus Polyphemus • Fusarium Solani • Branchitismentioning

confidence: 99%

Fusarium solani species complex associated with carapace lesions and branchitis in captive American horseshoe crabs Limulus polyphemus

Tuxbury¹,

Shaw²,

Montali³

et al. 2014

Dis. Aquat. Org.

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Captive American horseshoe crabs Limulus polyphemus housed at the National Aquarium presented with a variety of shell and gill lesions over a 3 yr period. Carapace lesions were located on both the dorsal and ventral prosoma and opisthosoma and included multifocal circular areas of tan discoloration, ulcerations, and/or pitting lesions, extending from superficial to full thickness. Gill lesions involved both the book gill cover (operculum) and individual book gill leaflets and included multifocal circular areas of tan discoloration, tan to off-white opaque proliferative lesions, and/or areas of black discoloration. Histopathology revealed fungal hyphae, with variable morphology throughout the thickened and irregular cuticle of the carapace and occasionally penetrating into subcuticular tissues, with associated amebocytic inflammation. Book gill leaflets were infiltrated by fungal hyphae and contained necrotic debris and amebocytes. Thirty-eight of 39 animals (97%) evaluated via histopathological examination had intralesional fungal hyphae. Fungal cultures of carapace and gill lesions were attempted in 26 tissue samples from 15 individuals and were positive in 13 samples (50%), with 10 cultures (77%) yielding identification to genus. Fusarium sp. was identified in 8 of the 10 cultures (80%) via culture morphology. The Fusarium solani species complex was confirmed in 6 of these 8 (75%) via polymerase chain reaction amplification of 2 different ribosomal-specific sequences of isolated fungal DNA. Ante-mortem systemic and topical treatments were performed on some affected individuals, but no appreciable change in lesions was observed. Mycotic dermatitis and branchitis are serious health issues for captive American horseshoe crabs.

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False Killer Whale Pseudorca crassidens (Owen, 1846)

Zaeschmar¹,

Estrela

2020

Handbook of the Mammals of Europe

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Deep Granulomatous Dermatitis of the Fin Caused by <i>Fusarium solani</i> in a False Killer Whale (<i>Pseudorca crassidens</i>)

Cited by 17 publications

References 11 publications

Cutaneous nodules in Irrawaddy dolphins: an emerging disease in vulnerable populations

Cutaneous nodules in Irrawaddy dolphins: an emerging disease in vulnerable populations

Fusarium solani species complex associated with carapace lesions and branchitis in captive American horseshoe crabs Limulus polyphemus

False Killer Whale Pseudorca crassidens (Owen, 1846)

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