To the best of our knowledge, this is the first report of female genital system infiltration of T-cell lymphoma in veterinary literature. A 1.5-year-old, intact female Golden Retriever was referred due to melena and hyporexia that lasted for three weeks. Fever (40.5℃), tachycardia, tachypnoea, pale mucous membranes, and purulent vaginal discharge were identified on physical examination. Blood analyses revealed leucocytosis, anaemia, hypoalbuminemia, and increased lactate and C-reactive protein levels. On abdominal radiography, the small intestine was moderately deviated because of an oval-shaped mass (13 cm × 8.7 cm) located in the mid-abdomen. An enlarged tubular-shaped structure that had the opacity of soft tissue located in dorsal to the bladder to the middle of the abdomen, and an oval-shaped mass (5.28 cm × 3.26 cm), which was suspected to be a medial iliac lymph node located at the sixth to seventh lumbar level. Abdominal ultrasonography revealed gas and fluid in the lumen of the uterine horn with a severely thickened wall, round enlarged lymph nodes around the genitourinary system, and free fluid in the abdominal cavity. Based on these results, pyometra was suspected, and an exploratory laparotomy was performed for ovariohysterectomy. The resected ovary and uterus were macroscopically hypertrophied. Histopathological examination of the ovary and uterus revealed neoplastic proliferation of large round cells with strong immunoreactivity for CD3, indicating T-cell lymphoma. Therefore, the young dog was diagnosed with genital lymphoma. The present report describes T-cell lymphoma infiltrating the uterus and ovaries in a young dog, which is rarely diagnosed and could aid in the differential diagnosis of genital diseases in young dogs.

中文翻译：

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T 细胞淋巴瘤浸润金毛猎犬的子宫和卵巢：病例报告

据我们所知，这是兽医文献中首次报道女性生殖系统T细胞淋巴瘤浸润。一只1.5岁的完整雌性金毛猎犬因持续三周的黑便和厌食症被转诊。体检发现发热（40.5℃）、心动过速、呼吸急促、粘膜苍白、白带脓性。血液分析显示白细胞增多、贫血、低蛋白血症以及乳酸和 C 反应蛋白水平升高。腹部X线检查显示，中腹部有一椭圆形肿块（13厘米×8.7厘米），小肠中度偏斜。膀胱背侧至腹部中部，肿大管状结构，软组织混浊，椭圆形肿块（5.28 cm×3.26 cm），疑为髂内侧淋巴结位于腰椎第六至第七层。腹部超声检查显示子宫角腔内有气体和液体，壁严重增厚，泌尿生殖系统周围淋巴结肿大，腹腔内有游离液体。根据这些结果，怀疑子宫蓄脓，并进行了剖腹探查术以进行卵巢子宫切除术。切除的卵巢和子宫肉眼可见肥大。卵巢和子宫的组织病理学检查显示大圆形细胞的肿瘤性增殖，对 CD3 具有强免疫反应性，表明 T 细胞淋巴瘤。因此，这只幼犬被诊断出患有生殖器淋巴瘤。本报告描述了幼犬中浸润子宫和卵巢的 T 细胞淋巴瘤，这种情况很少被诊断出来，但可能有助于幼犬生殖器疾病的鉴别诊断。