Mammary adenocarcinoma in a mare

Abstract

A non-lactating 17-year-old grey barren Mangalarga Marchador mare was referred to the Large Animal Veterinary Hospital of the Federal Rural University of Rio de

Equine mammary gland disease with a focus on botryomycosis: A review and case study

“…Quite often tumours are not diagnosed at first and will usually have been treated as mastitis (Reppas et al . 1996; Brito et al . 2008; Shank 2009).…”

“…Fine needle aspiration biopsies are often unrewarding as cytology may be misleading. Wedge biopsy or a hollow‐needle (Trucut) biopsy provides a much more reliable histopathological diagnosis (Brito et al . 2008; Shank 2009).…”

“…In chronic problems, histological examination of a biopsy of abnormal tissue is required to establish a definitive diagnosis. Fine needle aspiration biopsies are often unrewarding and thus a wedge biopsy or a hollow needle (Trucut) biopsy is required (Brito et al . 2008; Shank 2009).…”

Invasive micropapillary carcinoma of the mammary glands in a mare

“…Neoplasms of the mammary glands are common in carnivores but are very uncommon in herbivores (Moulton 1990). In horses, there are only a few reports of mammary neoplasms in the last 30 years (Schmahl 1972;Acland and Gillette 1982;Munson 1987;Foreman et al 1990;Seahorn 1992;Reppas et al 1996;Kato et al 1998;Prendergast et al 1999;Hirayama et al 2003;Brito et al 2008). Invasive micropapillary carcinoma (IMC) of the breast is an aggressive and distinctive variant of human infiltrative ductal carcinoma, which presents lymph tropism and frequently spreads to the lymph nodes (Luna-moreé t al.…”

Mammary fibroadenomatoid hyperplasia in a heifer

“…Infrequent cases of mammary neoplasms have been reported in cattle (POVEY & OSBORNE, 1969;MINA et al, 1994), mares (HIRAYAMA et al, 2003;BRITO et al, 2008), water buffalo (MANDAL & IYER, 1969), and goats (SINGH & IYER, 1972); whereas, hyperplastic changes have been observed in cattle (HONG et al, 1994) and water buffalo (SANT'ANA et al, 2014). Mammary epithelial hyperplasia is classified into three distinct types: lobular (arising from the intralobular ducts), ductal (arising from the extralobular ducts), and adenosis (CASSALI et al, 2011).…”