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de Sant'Ana FJF, Carvalho FC, de O Gamba C, Cassali GD, Riet-Correa F, Schild AL. Mammary diffuse fibroadenomatoid hyperplasia in water buffalo (Bubalus bubalis): three cases. J Vet Diagn Invest 2014; 26:453-456. [PMID: 24621849 DOI: 10.1177/1040638714526595] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
The current report describes 3 rare cases of mammary diffuse fibroadenomatoid hyperplasia in water buffalo (Bubalus bubalis). All of the animals were between 10 and 12 months of age. Grossly, the lesions consisted of severe diffuse swelling with homogeneous large masses in the udder. Surgical removal of the masses was curative. Microscopically, there was severe hyperplasia of the mammary epithelium and numerous well-differentiated and mildly pleomorphic acini and their associated ducts. Moderate proliferation of the fibrous connective tissue and the myoepithelial cells near the proliferating acini was also evident. The hyperplastic epithelial cells exhibited positive immunostaining for cytokeratin, estrogen receptors, and progesterone receptors. In addition, the myoepithelial cells displayed moderate positivity for alpha smooth muscle actin. Based on the clinical, morphologic, and immunohistochemical findings, a diagnosis of mammary diffuse fibroadenomatoid hyperplasia with probable hormonal influence was made.
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Affiliation(s)
- Fabiano J F de Sant'Ana
- Laboratory of Veterinary Pathology, University of Brasília, Brasília, Distrito Federal, Brazil (de Sant'Ana)Cooperativa Agroindustrial dos Produtores Rurais do Sudoeste Goiano, Santa Helena de Goiás, Goiás, Brazil (Carvalho)Instituto de Ciências Biológicas, Federal University of Minas Gerais, Belo Horizonte, Minas Gerais, Brazil (Gamba, Cassali)Veterinary Hospital, Federal University of Campina Grande, Paraíba, Brazil (Riet-Correa)Regional Laboratory of Diagnosis, Federal University of Pelotas, Pelotas, Rio Grande do Sul, Brazil (Schild)
| | - Fausto C Carvalho
- Laboratory of Veterinary Pathology, University of Brasília, Brasília, Distrito Federal, Brazil (de Sant'Ana)Cooperativa Agroindustrial dos Produtores Rurais do Sudoeste Goiano, Santa Helena de Goiás, Goiás, Brazil (Carvalho)Instituto de Ciências Biológicas, Federal University of Minas Gerais, Belo Horizonte, Minas Gerais, Brazil (Gamba, Cassali)Veterinary Hospital, Federal University of Campina Grande, Paraíba, Brazil (Riet-Correa)Regional Laboratory of Diagnosis, Federal University of Pelotas, Pelotas, Rio Grande do Sul, Brazil (Schild)
| | - Conrado de O Gamba
- Laboratory of Veterinary Pathology, University of Brasília, Brasília, Distrito Federal, Brazil (de Sant'Ana)Cooperativa Agroindustrial dos Produtores Rurais do Sudoeste Goiano, Santa Helena de Goiás, Goiás, Brazil (Carvalho)Instituto de Ciências Biológicas, Federal University of Minas Gerais, Belo Horizonte, Minas Gerais, Brazil (Gamba, Cassali)Veterinary Hospital, Federal University of Campina Grande, Paraíba, Brazil (Riet-Correa)Regional Laboratory of Diagnosis, Federal University of Pelotas, Pelotas, Rio Grande do Sul, Brazil (Schild)
| | - Geovanni D Cassali
- Laboratory of Veterinary Pathology, University of Brasília, Brasília, Distrito Federal, Brazil (de Sant'Ana)Cooperativa Agroindustrial dos Produtores Rurais do Sudoeste Goiano, Santa Helena de Goiás, Goiás, Brazil (Carvalho)Instituto de Ciências Biológicas, Federal University of Minas Gerais, Belo Horizonte, Minas Gerais, Brazil (Gamba, Cassali)Veterinary Hospital, Federal University of Campina Grande, Paraíba, Brazil (Riet-Correa)Regional Laboratory of Diagnosis, Federal University of Pelotas, Pelotas, Rio Grande do Sul, Brazil (Schild)
| | - Franklin Riet-Correa
- Laboratory of Veterinary Pathology, University of Brasília, Brasília, Distrito Federal, Brazil (de Sant'Ana)Cooperativa Agroindustrial dos Produtores Rurais do Sudoeste Goiano, Santa Helena de Goiás, Goiás, Brazil (Carvalho)Instituto de Ciências Biológicas, Federal University of Minas Gerais, Belo Horizonte, Minas Gerais, Brazil (Gamba, Cassali)Veterinary Hospital, Federal University of Campina Grande, Paraíba, Brazil (Riet-Correa)Regional Laboratory of Diagnosis, Federal University of Pelotas, Pelotas, Rio Grande do Sul, Brazil (Schild)
| | - Ana L Schild
- Laboratory of Veterinary Pathology, University of Brasília, Brasília, Distrito Federal, Brazil (de Sant'Ana)Cooperativa Agroindustrial dos Produtores Rurais do Sudoeste Goiano, Santa Helena de Goiás, Goiás, Brazil (Carvalho)Instituto de Ciências Biológicas, Federal University of Minas Gerais, Belo Horizonte, Minas Gerais, Brazil (Gamba, Cassali)Veterinary Hospital, Federal University of Campina Grande, Paraíba, Brazil (Riet-Correa)Regional Laboratory of Diagnosis, Federal University of Pelotas, Pelotas, Rio Grande do Sul, Brazil (Schild)
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Abstract
A fibroadenoma was diagnosed in the left udder of a 3-month-old female Chios lamb. No recurrence was observed after surgery. Grossly, the tumor had a whitish-gray lobular appearance, and the lobules were interlaced with thin septa. Microscopically, the tumor was composed of proliferating fibroepithelial tissue, including differentiated ducts lined by whorls and interlacing bundles of abundant loose fibrovascular stroma. Immunohistochemistry revealed the ductal epithelium to be positive for pancytokeratin (AE1/AE3) and loose fibrovascular stroma was positive for vimentin and basal cells covering the ductal epithelium of alpha-smooth-muscle actin. Immunostaining for the estrogen and progesterone receptors was negative. A diagnosis of mammary fibroadenoma was made based on the histological and immunohistochemical findings.
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Affiliation(s)
- M Yavuz Gulbahar
- Department of Pathology, Faculty of Veterinary Medicine, University of Ondokuz Mayis, 55139 Kurupelit, Samsun, Turkey.
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