一只野生加利福尼亚海狮（加利福尼亚海狗）的腮腺癌

PAROTID CARCINOMA IN A FREE-RANGING CALIFORNIA SEA LION ( ZALOPHUS CALIFORNIANUS).

作者信息

McClain Abby M, Haulena Martin, Tang Karisa, Morell Maria, Raverty Stephen

出版信息

J Zoo Wildl Med. 2018 Sep;49(3):824-827. doi: 10.1638/2017-0130.1.

DOI:10.1638/2017-0130.1

Abstract

A free-ranging juvenile California sea lion ( Zalophus californianus) stranded on the coast of Vancouver, British Columbia, with signs of lethargy and emaciation in April 2016. An asymmetrical skull with a prominent superficial cervical lymph node was found on initial assessment. Fine-needle aspirates and biopsies of the lymph node were consistent with neoplasia and the animal was humanely euthanized and presented for necropsy. A metastatic parotid gland adenocarcinoma was diagnosed with regional lymph node and pulmonary metastases. Local invasion of contiguous skeletal muscle, bone, ear, and tonsils was extensive and likely accounted for the unilateral craniofacial deformity. Neoplasia of nonurogenital origin in juvenile California sea lions are reported infrequently. This is the first case of a parotid carcinoma in a California sea lion.

摘要

2016年4月，一只自由放养的幼年加利福尼亚海狮（Zalophus californianus）搁浅在不列颠哥伦比亚省温哥华海岸，出现嗜睡和消瘦迹象。初步评估发现其头骨不对称，颈部浅表淋巴结突出。淋巴结细针穿刺抽吸和活检结果与肿瘤相符，遂对该动物实施安乐死并进行尸检。诊断为转移性腮腺腺癌，伴有区域淋巴结和肺部转移。肿瘤对相邻骨骼肌、骨骼、耳朵和扁桃体的局部侵犯广泛，可能是导致单侧颅面畸形的原因。幼年加利福尼亚海狮非泌尿生殖系统起源的肿瘤报道较少。这是加利福尼亚海狮腮腺癌的首例病例。