Hennig G E, Steckel R R
Department of Surgery, School of Veterinary Medicine, Tufts University, North Grafton, MA 01536.
J Am Vet Med Assoc. 1991 Oct 1;199(7):907-8.
Branchial cleft cyst was diagnosed in a 6-month-old Angus bull with a large swelling in the distal ventral neck region. A definitive diagnosis could not be attained from results of the clinical examination, radiography, and ultrasonography. Diagnosis was made from histologic examination of the surgically removed mass. Branchial cleft cysts are remnants of the branchial apparatus and are considered rare in domestic animals. The differential diagnosis should include the thymic form of bovine viral leukosis, thymoma, abscess, goiter, and thyroid gland tumors as well as other rare cysts that can develop in the same location.
在一头6个月大的安格斯公牛的颈部腹侧远端发现一个大肿块，诊断为鳃裂囊肿。临床检查、放射成像和超声检查结果均无法确诊。通过对手术切除肿块的组织学检查得以确诊。鳃裂囊肿是鳃器的残余物，在家畜中较为罕见。鉴别诊断应包括牛病毒性白血病的胸腺型、胸腺瘤、脓肿、甲状腺肿、甲状腺肿瘤以及其他可能在同一部位发生的罕见囊肿。
