Mammary fibroadenoma in a lamb

Gulbahar M. Y., Güvenç T., Yarim M., Kabak Y. B., Sozgen Y.

JOURNAL OF VETERINARY SCIENCE, cilt.8, sa.4, ss.423-425, 2007 (SCI-Expanded) identifier identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 8 Sayı: 4
  • Basım Tarihi: 2007
  • Doi Numarası: 10.4142/jvs.2007.8.4.423
  • Dergi Adı: JOURNAL OF VETERINARY SCIENCE
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.423-425
  • Anahtar Kelimeler: fibroadenoma, lamb, mammary gland, ovine, tumor, HYPERPLASIA, BREAST
  • Ondokuz Mayıs Üniversitesi Adresli: Evet

Özet

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.