Schultz V A, Watson A G
Department of Physiological Sciences, College of Veterinary Medicine, Oklahoma State University, Stillwater 74078, USA.
J Am Anim Hosp Assoc. 1995 Mar-Apr;31(2):101-6. doi: 10.5326/15473317-31-2-101.
A three-month-old, male Chihuahua puppy with congenital absence of the distal 40% of the right thoracic limb was examined. The limb ended as a short, rounded, skin-covered stump. Radiography revealed a 40% shortened humerus tapered to a blunt end without its distal extremity. Dissection of the left thoracic limb identified luxation of the elbow joint and absence of the fourth digital pad. Alizarin-red staining and clearing demonstrated syndactylous fourth and fifth digits in the left thoracic limb and an anomalous eighth lumbar vertebra. This additional vertebra was unilaterally sacralized and constituted a lumbosacral transitional vertebra.
对一只三个月大的雄性吉娃娃幼犬进行了检查，该犬右前肢远端40%先天性缺失。该肢体末端为一个短而圆、覆盖着皮肤的残端。X线摄影显示肱骨缩短40%，逐渐变细至钝端，无远端。对左前肢进行解剖发现肘关节脱位和第四趾垫缺失。茜素红染色和透明处理显示左前肢第四和第五趾并指，以及一个异常的第八腰椎。这个额外的椎体单侧骶化，构成了一个腰骶过渡椎体。
