A clinical case of an 11-year-old bitch with unilateral ovarian dysgerminoma and pyometra is described. The owner reported purulent discharge from external genitalia, fastidious appetite and depression. Transabdominal ultrasonography of the reproductive organs showed a hypoechoic mass in the region of the left ovary (7.18 × 6.65 cm) and a strongly enlarged uterine lumen full of anechoic fluid. Vaginal cytology demonstrated about 50% superficial cornfield epithelial cells and multiple neutrophils. Complete blood counts and blood biochemistry analysis indicated a significant leukocytosis and a mild anemia. Blood progesterone (3.96 ng/ml) and estradiol (86 pg/ml) were assayed. Median laparotomy revealed an enlarged uterus, substantially altered left ovary, of the size of a grapefruit. The right ovary was of normal size and structure. Tumor metastases in other organs were not seen. Histologically, diffusely located cancer cells resembling primitive germ cells, specific for dysgerminomas, were established. One year after the surgery, according to the owner the dog is vital, with normal appetite and without general condition abnormalities.
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机译：描述了一个11岁的母犬单侧卵巢功能异常和脓疱的临床病例。所有者报告外生殖器，食欲不振和抑郁症有脓性分泌物。经生殖器官的腹部超声检查显示，左卵巢区域有低回声肿块（7.18×6.65 cm），子宫腔内充满了无回声的液体。阴道细胞学检查显示约50％的浅表玉米田上皮细胞和多个中性粒细胞。全血细胞计数和血液生化分析表明明显的白细胞增多和轻度贫血。测定血液中的孕酮（3.96 ng / ml）和雌二醇（86 pg / ml）。中位剖腹手术显示子宫增大，葡萄柚大小明显改变了左卵巢。右卵巢大小和结构正常。未见其他器官的肿瘤转移。在组织学上，建立了类似于原始生殖细胞的弥散分布的癌细胞，特异于营养不良。据主人说，手术后一年，狗是至关重要的，食欲正常，无一般情况异常。
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