Congenital Anomalies in Lemur variegatus

Abstract

In a colony of black and white ruffed lemurs, Lemur (Varecia) variegatus subsp., similar congenital anomalies were found in successive years. Four malformed infants had skull defects, scoliosis, kinked tails, internal anomalies as well as reduced birth weights. They derived from one male and two females whose phenotypes are normal except for the kinked tail of the male. The possible causes including modes of inheritance are considered.

Imaging Diagnosis—acquired Pectus Excavatum Secondary to Laryngeal Paralysis in a Dog

“…Pectus excavatum affects a number of animal species, including dogs . The deformity has been reported in multiple affected dogs within a litter, suggesting possible heritability .…”

Correlation between clinical severity and type and degree of pectus excavatum in twelve brachycephalic dogs

“…Pectus excavatum (funnel chest; sunken chest) is the most commonly reported congenital skeletal deformity of the thoracic wall characterized by ventro-dorsal deviation of the sternum and associated costal cartilages [ 10 , 12 ]. The condition is usually uncommon; however, several reports have been published describing the deformity in humans, dogs, and cats, as well as in non-domesticated animals [ 1 , 3 , 5 , 8 , 9 , 11 , 14 , 17 ]. It typically occurs in the caudal part of the sternum [ 1 , 3 , 8 , 9 , 11 , 14 , 17 ].…”

Absence of the right wing of the ilium generated a compensatory scoliosis in rhesus monkey in captivity: diagnostic imaging and its alteration on the SEPNT

“…First, CS is not widely reported in four‐legged animals and much less in NHP. Second, considering that the few investigations that exist have been performed in post‐mortem subjects , it was essential to evaluate the electric conductivity of the somatosensory pathway in relation to the scoliotic curvature generated from the absence of the right ilium wing. At this point, it is observed an enlargement of the latencies (Fig.…”

“…The presence of CS has been described in several mammalian species . However, in the case of non‐human primates (NHP), few cases of this kind of scoliosis have been diagnosed, and in most cases, this has been a post‐mortem finding . The objective of this paper is to expose the presence of CS in a female rhesus ( Macaca mulatta ) in captivity conditions through radiologic and tomographic studies from the first cervical vertebrae to the sacrum (C1‐S1), as well as electrical conductivity of somatosensory pathways through somatosensory‐evoked potentials of the tibial nerve (SEPTN).…”