Timm K I, Watrous B J
College of Veterinary Medicine, Oregon State University, Corvallis 97331.
J Am Vet Med Assoc. 1988 Apr 1;192(7):937-8.
Contrast radiography revealed a urethral recess in 2 male llamas, and, in 1, an incidental cyst in the wall of the pelvic urethra. The urethral recess was similar to that found in cattle, sheep, goats, and camels. The presence of a urethral recess in llamas makes catheterization of the urinary bladder as difficult in this species as it is in the other species with urethral recesses.
造影X线摄影显示，2只雄性美洲驼有尿道隐窝，其中1只在盆腔段尿道壁有一个偶然发现的囊肿。美洲驼的尿道隐窝与在牛、绵羊、山羊和骆驼中发现的相似。美洲驼存在尿道隐窝使得对该物种进行膀胱插管和其他有尿道隐窝的物种一样困难。
