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N Z Vet J. 2004 Jun;52(3):150-2.

Pulmonary hyalohyphomycosis caused by Fusarium spp in a Kemp's ridley sea turtle (Lepidochelys kempi): an immunohistochemical study.

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  • 1Unit of Histology and Pathology, Veterinary Faculty, University of Las Palmas de Gran Canaria (ULPGC), Trasmontaña s/n, 35416, Arucas (Las Palmas), Spain. joros@dmor.ulpgc.es

Abstract

AIM:

To describe the microscopic and immunohistochemical findings in a case of pulmonary hyalohyphomycosis in a Kemp's ridley sea turtle (Lepidochelys kempi).

METHODS:

Samples of lung, liver and kidney from a stranded, dead Kemp's ridley sea turtle were routinely processed for histopathological studies. Two monoclonal antibodies that reacted specifically with antigens of Aspergillus spp and the Mucorales (Zygomycetes) group, and a panel of polyclonal antibodies raised against Aspergillus fumigatus, Candida albicans, Geotrichum candidum, Fusarium solani, and Scedosporium apiospermum were used for immunohistochemical or immunofluorescence staining.

RESULTS:

Histologically, a severe multifocal granulomatous pneumonia associated with fungal infection was diagnosed. All hyphae were identified as Fusarium spp because a strong and uniform reactivity was obtained only with a heterologously-absorbed polyclonal antibody raised against somatic antigens of Fusarium solani.

CONCLUSIONS:

Fusarium spp should be included in the differential diagnosis of mycotic pneumonia in Kemp's ridley sea turtles.

CLINICAL RELEVANCE:

This is the first report of a pulmonary mycotic infection in a sea turtle diagnosed using immunohistochemistry. Wildlife rehabilitators and pathologists should be aware of the availability of immunohistochemical techniques for identifying fungi in sea turtles.

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