Pathology: Retroperitoneal teratoma in a domestic rabbit (Oryctolagus cuniculus)

  • MUTINELLI Franco
    Istituto Zooprofilattico Sperimentale delle Venezie, Histopathology Department, Viale dell'Universita'
  • CARMINATO Antonio
    Istituto Zooprofilattico Sperimentale delle Venezie, Histopathology Department, Viale dell'Universita'
  • BOZZATO Elisa
    Istituto Zooprofilattico Sperimentale delle Venezie, Histopathology Department, Viale dell'Universita'
  • MARCHIORO Wendy
    Istituto Zooprofilattico Sperimentale delle Venezie, Histopathology Department, Viale dell'Universita'
  • TREVISAN Laura
    Istituto Zooprofilattico Sperimentale delle Venezie, Histopathology Department, Viale dell'Universita'
  • VASCELLARI Marta
    Istituto Zooprofilattico Sperimentale delle Venezie, Histopathology Department, Viale dell'Universita'

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タイトル別名
  • Retroperitoneal Teratoma in a Domestic Rabbit (Oryctolagus cuniculus)

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抄録

Teratomas are histologically complex tumors arising from germ cells of two or three embryonic layers either in the gonads or occasionally from germ cells that mistakenly migrated to ectopic sites. A case of retroperitoneal teratoma in a regularly slaughtered 4-month-old, male domestic rabbit is reported. A pale reddish, 3 × 4 cm, fibrous mass was detected, loosely connected to the parietal wall in the retroperitoneal region cranial to the kidney. Histologically, the neoplasm contained tissues from ectodermal, endodermal and mesodermal germ layers: nerves and neurons simulating ganglia, cysts lined by squamous epithelium containing keratin and hair, skin adnexa; respiratory glandular epithelium, serous and salivary glands; collagenous connective tissue, muscle fibers, mature cartilage and bone, bone marrow, teeth and fat. To the authors' knowledge this is the first report of a retroperitoneal teratoma in the rabbit.<br>

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