Terai Kazuyuki, Tanaka Ryou, Takeuchi Aki, Shimada Kazumi, Hirose Miki, Yokoi Aimi, Mitsui Ikki, Hamabe Lina
Department of Veterinary Medicine, Faculty of Agriculture, Tokyo University of Agriculture and Technology, Fuchu 183-8509, Japan.
Laboratory of Veterinary Anatomy, Faculty of Veterinary Medicine, Okayama University of Science, Imabari 794-8555, Japan.
Vet Sci. 2025 Mar 7;12(3):253. doi: 10.3390/vetsci12030253.
Tumors originating from the uterine tube are exceedingly rare in dogs, with limited clinical and therapeutic data available. This report illustrates a case of a uterine tube adenoma in a one-year-and-two-month-old intact female Pomeranian presented with severe abdominal distension. Diagnostic imaging revealed a large abdominal mass compressing the left kidney, suspected to originate from the female reproductive organs. Surgical excision of the mass, accompanied by ovariohysterectomy, was performed without complications. The tumor, measuring 30 cm in diameter and weighing 1.086 kg, accounted for 28% of the dog's body weight. Histopathology confirmed the diagnosis of benign uterine tube adenoma with no evidence of vascular invasion. The dog experienced no postoperative complications and remained tumor-free for over 912 days post-surgery. This case highlights the possibility of uterine tube tumors developing even at a young age and reaching significant sizes without overt clinical signs. While diagnostic findings were unable to identify the precise tissue origin, surgical excision was an effective treatment, even for this large-sized tumor. The findings of this case underscore the importance of including uterine tube tumors in differential diagnoses for female reproductive mass lesions. Further case accumulation is necessary to expand our understanding of this rare condition in dogs.
犬类起源于输卵管的肿瘤极为罕见，可用的临床和治疗数据有限。本报告阐述了一例子宫输卵管腺瘤病例，患犬为一只1岁零2个月大的未绝育雌性博美犬，表现为严重腹胀。诊断性影像学检查发现一个巨大的腹部肿块压迫左肾，怀疑起源于雌性生殖器官。对肿块进行了手术切除，并同时实施了卵巢子宫切除术，未出现并发症。该肿瘤直径达30厘米，重1.086千克，占犬体重的28%。组织病理学确诊为良性子宫输卵管腺瘤，无血管侵犯迹象。术后该犬未出现并发症，术后912天以上未再出现肿瘤。该病例凸显了输卵管肿瘤即使在幼年时也可能发生且在无明显临床症状的情况下长到相当大尺寸的可能性。虽然诊断结果无法确定确切的组织起源，但手术切除是一种有效的治疗方法，即使对于这种大尺寸肿瘤也是如此。该病例结果强调了在雌性生殖器官肿块病变的鉴别诊断中纳入输卵管肿瘤的重要性。需要进一步积累病例，以加深我们对犬类这种罕见病症的认识。
