Laboratory of Veterinary Surgery, Department of Veterinary Medicine, College of Bioresource Sciences, Nihon University, Fujisawa, Kanagawa, Japan.
Vet Med Sci. 2024 Mar;10(2):e31389. doi: 10.1002/vms3.1389.
Osteosarcoma is the most common tumour that develops in the chest wall of dogs; an extensive excision is the treatment of choice. Various methods have been reported for reconstruction of chest wall defects following extensive excision. The objective of this report was to describe the complete resection of an extensive costal osteosarcoma with an extended resection of the ribs and part of the diaphragm in a dog. An 11-year-old neutered, male, miniature pinscher was presented with dyspnoea: An extensive mass was observed, stretching from the right chest wall to the abdominal wall. On computed tomography, the mass originated from the right 9th rib and exceeded the 6th rib on the cranial side and the 13th rib on the caudal side; it was compressing the lungs, diaphragm, liver, stomach and duodenum. When the patient's condition was medically stabilized, the tumour was removed from the right 9th rib. In consideration of the surgical margin, the 5th-13th ribs were excised, and the tumour was resected with the thoracoabdominal wall and part of the diaphragm. The missing thoracoabdominal wall and section of the diaphragm were reconstructed using two sheets of a polypropylene mesh. Postoperatively, flail chest was observed, although dyspnoea was not observed in the patient. Histopathological examination confirmed the diagnosis of osteosarcoma with a clean margin. Although 60.6 months have passed post-surgery, no metastasis has reoccurred. In this case, complete resection and reconstruction of the chest wall and diaphragm were achieved using a polypropylene mesh without fatal postoperative complications, despite extensive osteosarcoma resection.
成骨肉瘤是犬胸部壁最常见的肿瘤；广泛切除是首选的治疗方法。已经报道了多种方法用于重建广泛切除后胸壁缺损。本报告的目的是描述一只小型犬广泛切除肋骨和部分膈肌的广泛肋部骨肉瘤。一只 11 岁去势雄性迷你笃宾犬因呼吸困难就诊：观察到一个广泛的肿块，从右胸壁延伸到腹壁。在计算机断层扫描中，肿块起源于右第 9 肋骨，超过颅侧第 6 肋骨和尾侧第 13 肋骨；它压迫着肺、膈肌、肝脏、胃和十二指肠。当患者的病情稳定后，从右第 9 肋骨切除肿瘤。考虑到手术切缘，切除第 5-13 肋骨，并切除胸腹壁和部分膈肌的肿瘤。使用两片聚丙烯网重建缺失的胸腹壁和膈肌部分。术后观察到连枷胸，但患者无呼吸困难。组织病理学检查证实了骨肉瘤的诊断，切缘干净。尽管术后 60.6 个月，但没有复发转移。在这种情况下，尽管广泛切除骨肉瘤，但使用聚丙烯网实现了胸壁和膈肌的完全切除和重建，没有致命的术后并发症。
