ABSTRACT
A 3-year-old, female mixed-breed dog had malformations of both thoracic limbs and the vertebral column. Radiographs of the forelimbs showed bilateral development of 2 digits and aplasia of 3 carpal bones. Kyphosis, scoliosis, and deformed vertebrae were present in the thoracolumbar vertebral column.
Subject(s)
Dog Diseases/diagnosis , Dogs/abnormalities , Kyphosis/veterinary , Scoliosis/veterinary , Abnormalities, Multiple/veterinary , Animals , Dog Diseases/pathology , Dogs/anatomy & histology , Female , Fingers/abnormalities , Fingers/pathology , Forelimb/abnormalities , Forelimb/anatomy & histology , Hand Deformities, Congenital/diagnosis , Hand Deformities, Congenital/pathology , Hand Deformities, Congenital/veterinary , Kyphosis/diagnosis , Kyphosis/pathology , Limb Deformities, Congenital , Scoliosis/diagnosis , Scoliosis/pathology , Spine/abnormalities , Spine/anatomy & histology , Thoracic VertebraeABSTRACT
This report describes congenital radial and thumb aplasia in a neonatal owl monkey. Congenital limb deformities in human neonates and Old World primate species have been well characterized. The many probable causes of these congenital defects in skeletal structure include fetal exposure to environmental toxins and genetic influences. In nonhuman primates, the cause frequently remains undetermined. In the case we present, the neonate presented for examination because of inability to cling to the dam. The forelimbs were contracted distally, and thumbs were absent. Radiographs indicated complete radial aplasia and other skeletal abnormalities. This description is the fi rst case study of congenital radial and thumb aplasia in a New World primate species.
Subject(s)
Aotidae , Hand Deformities, Congenital/veterinary , Radius/abnormalities , Thumb/abnormalities , Animals , Animals, Newborn , Euthanasia, Animal , Hand Deformities, Congenital/diagnostic imaging , Hand Deformities, Congenital/pathology , Male , Radiography , Radius/diagnostic imaging , Thumb/diagnostic imagingABSTRACT
A congenital abnormality of the digits, similar to the 'lobster claw' deformity of humans, was observed in 8 common marmosets. The condition varied in severity and in effect on the animals; it appeared to be due to a single autosomal recessive trait.
