关键词: <, p>, 犬, 耳, 肿瘤, 病理学<, /p>

Abstract: Abstract: Objective 32 cases of canine ear tumors were pathologically diagnosed and analyzed to explore the occurrence regularity． Method The canine ear tumors were obtained from China Agricultural University Animalhospital from 2009 to 2015 by surgical treatment，which were analyzed according to pathological diagnose the occurrence regularity of the location，tissue origin，age and breed． Ｒesult The occurrence rate of trichoblastoma and histiocytoma in canine ear were each accounted for 26. 7%． Canine ear tumors occurred in 0 － 4. 9 years old accounted for 20%，5 － 9. 9 years old accounted for 40%，more than 10 years old accounted for 40%． The Tumors all occurred in the external ear，but not in middle ear and inner ear． From the breed，the high incidence was 8 cases of Cocker Spaniel，other varieties were 2 － 3 cases． Conclusion Trichoblastoma and histiocytoma were the often occurred in the canine ear and there was an upward trend of incidence on canine ear tumors with age increase but not on histiocytoma． All the tumors were occurred in the external ear and often occurred in Cocker Spaniel．

Key words: <p>canine, ear, tumor, pathology</p>