tubulopapillary carcinoma of the mammary gland in a maned wolf (chrysocyon brachyurus): histopathological and immunophenotypical analysis

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ID: 255677
2011
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Abstract
A maned female wolf (Chrysocyon brachyurus) showed nodules in the inguinal and left abdominal cranial mammary glands. The mammary gland was surgically excised, and microscopic analysis revealed epithelial cell proliferation in a tubular and papillary pattern; delicate fibrovascular stalks presenting numerous layers of moderately pleomorfic epithelial cells were observed. This histologic appearance was compatible with a diagnosis of mammary tubulopapillary carcinoma. The immunohistochemical profile revealed nuclear positivity for estrogen (70%) and progesterone (at least 90% of the neoplastic cells). The myoepithelium-associated with neoplastic cells lacked integrity, as evidenced by failed smooth muscle alpha actin reactivity in microinvasive areas. A low proliferation index was observed (3.4%). To the authors' knowledge, the present case represents the first finding of female tubulopapillary carcinoma in a mammary gland in this species.
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gamba2011arquivotubulopapillary Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors ;C.O. Gamba;K.A. Damasceno;E. Ferreira;M.C.C. Malta;G.D. Cassali
Journal Environmental research
Year 2011
DOI
10.1590/S0102-09352011000600014
URL
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352011000600014&lng=en&tlng=en
Keywords
chrysocyon brachyurus

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