Hunt G B, Churcher R K, Church D B, Mahoney P
Department of Veterinary Anatomy, Faculty of Veterinary Science, University of Sydney, NSW, Australia.
J Am Vet Med Assoc. 1997 Jun 1;210(11):1628-30.
A 9-year-old female Golden Retriever was examined because of inappetance, labored breathing, edema, and distension of the veins of the neck. Thoracic radiography revealed pleural effusion and a cranial mediastinal mass. Biopsy results obtained by use of fine-needle aspiration were consistent with thymoma. At surgery, the tumor was found to have invaded the cranial vena cava. Extra- and intravascular portions were removed without complications, and the dog's clinical signs resolved. To our knowledge, this is the first documented report of an invasive thymoma causing cranial vena caval syndrome that has been successfully treated in a dog. In this instance, the simplest surgical method, namely venotomy and tumor extraction using venous inflow occlusion, was successful, obviating the need for temporary or permanent vascular conduits or grafts. These findings indicate that there is potential for surgical correction of invasive thymoma with cranial vena caval syndrome in some animals, and the prognosis is not always poor.
一只9岁雌性金毛猎犬因食欲不振、呼吸困难、水肿及颈部静脉扩张而接受检查。胸部X光检查显示有胸腔积液和前纵隔肿块。细针穿刺活检结果与胸腺瘤相符。手术时发现肿瘤已侵犯头臂静脉。完整切除血管内外的肿瘤部分，未出现并发症，犬的临床症状也随之消失。据我们所知，这是首例关于侵袭性胸腺瘤导致头臂静脉综合征并在犬类中成功治疗的文献报道。在此病例中，采用最简单的手术方法，即静脉切开术并在阻断静脉血流的情况下摘除肿瘤，获得成功，无需使用临时或永久性血管导管或移植物。这些发现表明，某些动物的侵袭性胸腺瘤伴头臂静脉综合征有可能通过手术矫正，且预后并非总是很差。
