Morris D D, Acland H M, Hodge T G
J Am Vet Med Assoc. 1985 Aug 1;187(3):272-4.
An 11-year-old Quarter Horse mare was presented with ventral edema and pleural effusion, secondary to a disseminated ovarian adenocarcinoma. Bilateral thoracocentesis yielded 30 L of thin, blood-tinged fluid, which was a modified transudate. Cytologic examination of the fluid revealed large atypical cells, suggestive of carcinomatous neoplasia. Similar cells were found in the peritoneal fluid. The mare was euthanatized. Necropsy revealed a 35-cm diameter mass in the cranial mediastinum, ventral to the trachea. The left ovary was 25 cm in diameter and most of the parenchyma was replaced by red or brown friable tissue, containing numerous 1-to 3-mm cysts. Papillary adenocarcinoma of the ovary was diagnosed, based on the appearance and arrangement of tumor cells in the ovary, sublumbar and tracheobronchial lymph nodes, and mediastinal mass. Ovarian neoplasia should be considered in the differential diagnosis of pleural effusion in the horse.
一匹11岁的夸特马母马因播散性卵巢腺癌继发腹侧水肿和胸腔积液前来就诊。双侧胸腔穿刺抽出30升稀薄的血性液体，为改良漏出液。对该液体进行细胞学检查发现大量非典型细胞，提示癌性肿瘤。在腹腔积液中也发现了类似细胞。该母马实施了安乐死。尸检发现气管腹侧的前纵隔有一个直径35厘米的肿块。左侧卵巢直径25厘米，大部分实质被红色或褐色易碎组织取代，其中含有许多1至3毫米的囊肿。根据卵巢、腰下和气管支气管淋巴结以及纵隔肿块中肿瘤细胞的外观和排列，诊断为卵巢乳头状腺癌。在马胸腔积液的鉴别诊断中应考虑卵巢肿瘤。
