NAVLE(北美执业兽医考题)Day 488

单选题,正确答案是100分,非正确答案为0分,Good Luck!
A 12- year-old spayed female black Scottish terrier is presented with a three week history of limping on the right forelimb. The second digit of the paw is enlarged, ulcerated, and bleeding with a loose toenail. A lytic bone lesion of the 3rd phalanx is visible on radiographs, and cytology of a fine needle aspirate of the mass suggests neoplasia. If biopsy of the mass confirms malignant subungual melanoma, which one of the following choices contain the best advice to the owner?
一只12岁的已绝育雌性黑色苏格兰梗出现持续3周的右前肢跛行。脚掌的第二趾肿胀,破溃,指甲松动。X光片可见第三指骨出现骨溶解性病变,FNA采样后的细胞学检查提示肿瘤性病变。如果活检报告显示指甲的恶性黑色素瘤,以下哪个选项是告知主人最好的建议?
Find out the answer by clicking on one of the listed choices. Good luck!
点击列出的选项找出答案,祝大家好运

A - Long-term prognosis is excellent if the tumor is completely resected. 完全切除肿瘤的话预后良好
B - Metastasis is common. Radical excision, plus adjuvant therapies is typically recommended 转移很常见。一般推荐完全切除外加辅助治疗
C - Due to the exquisite sensitivity of melanoma to radiotherapy, it is preferred as a sole treatment 黑色素瘤对放疗的敏感性非常高,可以作为唯一的首选治疗方法
D - DNA-based vaccine encoding human tyrosinase is effective against oral tumors but not licensed for subungual melanoma 编码人类酪氨酸酶的DNA疫苗对口腔肿瘤有效,但未批准用于爪下黑色素瘤
E - Nail bed melanomas in dogs are almost always benign and respond well to cryotherapy 犬的甲床黑色素瘤基本都是良性的,一般对冷冻疗法反应良好

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