A 5-year-old female spayed Australian shepherd is presented for poor appetite and lethargy. Bloodwork reveals hypercalcemia. Urinalysis is normal. Abdominal ultrasonography is unremarkable. Which one of the following choices is the most likely diagnosis? 一只5岁已绝育雌性澳大利亚牧羊犬由于食欲下降和嗜睡前来就诊。血检提示高血钙。尿检正常。腹部B超基本正常。以下哪个选项是最可能的诊断?
A - Mediastinal lymphosarcoma 纵隔淋巴肉瘤
B - Hypertrophic osteopathy 肥大性骨营养不良
C - Metastatic lung disease 转移性肺病
D - Hepatic parathyroid hormone-related protein releasing tumor 甲状旁腺激素相关蛋白分泌型肝脏肿瘤