Intracoelomic teratoma in a domestic duck (Anas platyrhynchos domesticus): a case report including immunohistochemistry and electron microscopy.
A female domestic duck (Anas platyrhynchos domesticus) suddenly died with abdominal distension and a large multilobulated mass within the coelomic cavity was found. Histologically and immunohistochemically, a benign mature tridermic teratoma was diagnosed and epithelial structures, cartilage, bone, myxoid tissue, adipocytes, muscle cells, cystic spaces lined by squamous epithelium, feather follicles, melanocytes and variable neural and glial differentiation were recognized. By electron microscopy, desmosomes, keratin bundles, dense core neurosecretory granules, aberrant Z-line material and Luse bodies were found. To our knowledge, this is the first report of tridermic benign intracoelomic teratoma of a duck in which an extensive immunohistochemical and electron microscopic examination has been performed and in which a common neural and glial differentiation has been demonstrated.
Department of Comparative Biomedical Sciences, Faculty of Veterinary Medicine, Teramo University, Piazza Aldo Moro 45, 64100 Teramo, Italy. cpalmieri@unite.it
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C
Palmieri
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M
Romanucci
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Loi
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Della Salda
D000818:Animals; D004372:Ducks; D017809:Fatal Outcome; D005260:Female; D007150:Immunohistochemistry / Q000662:veterinary*; D011201:Poultry Diseases / Q000473:pathology*; D013724:Teratoma / Q000473:pathology / Q000648:ultrastructure / Q000662:veterinary*