Pathology : Deep Granulomatous Dermatitis of the Fin Caused by Fusarium solani in a False Killer Whale (Pseudorca crassidens)

  • TANAKA Miyuu
    Veterinary Pathology, Graduate School of Life and Environmental Science, Osaka Prefecture University, 1-58 Rinkuu ourai Kita, Izumisano, Osaka 598-8531, Japan
  • IZAWA Takeshi
    Veterinary Pathology, Graduate School of Life and Environmental Science, Osaka Prefecture University, 1-58 Rinkuu ourai Kita, Izumisano, Osaka 598-8531, Japan
  • KUWAMURA Mitsuru
    Veterinary Pathology, Graduate School of Life and Environmental Science, Osaka Prefecture University, 1-58 Rinkuu ourai Kita, Izumisano, Osaka 598-8531, Japan
  • NAKAO Tatsuko
    Adventureworld AWS Co. Ltd., Nishimurogun, Shirahama-cho, Katada, Wakayama 649-2201, Japan
  • MAEZONO Yuko
    Adventureworld AWS Co. Ltd., Nishimurogun, Shirahama-cho, Katada, Wakayama 649-2201, Japan
  • ITO Shu
    Adventureworld AWS Co. Ltd., Nishimurogun, Shirahama-cho, Katada, Wakayama 649-2201, Japan
  • MURATA Michiko
    School of Veterinary Medicine, Azabu University, 1-17-71 Fuchinobe, Sagamihara, Kanagawa 229-8501, Japan
  • MURAKAMI Masaru
    School of Veterinary Medicine, Azabu University, 1-17-71 Fuchinobe, Sagamihara, Kanagawa 229-8501, Japan
  • SANO Ayako
    Department of Subtropical Agro-Production Sciences, Faculty of Agriculture, University of the Ryukyus, 1 Senbaru, Nishihara, Okinawa 903-0213, Japan
  • YAMATE Jyoji
    Veterinary Pathology, Graduate School of Life and Environmental Science, Osaka Prefecture University, 1-58 Rinkuu ourai Kita, Izumisano, Osaka 598-8531, Japan

書誌事項

タイトル別名
  • Deep Granulomatous Dermatitis of the Fin Caused by <i>Fusarium solani</i> in a False Killer Whale (<i>Pseudorca crassidens</i>)

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抄録

A 10-year-old female false killer whale (Pseudorca crassidens) developed skin lesions in the left breast fin. Histopathologically, the lesions consisted of multiple granulomas spread diffusely into the deep dermis and bone; characteristically, each granuloma had septate, branching fungal hyphae and chlamydospores surrounded by eosinophilic Splendore-Hoeppli materials. Macrophages, epithelioid cells and multinucleated giant cells in the granulomas reacted mainly to anti-SRA-E5 antibody against human macrophage scavenger receptor type I. Fusarium solani was isolated and its gene was detected from the skin samples. Mycotic skin lesions by Fusarium spp. reported so far in marine mammals were regarded as superficial dermatitis; therefore, the present case is very uncommon in that the lesions spread deeper into the skin.

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