Clinico-pathologic findings in a case of perosomus elumbis in a native calf
1999
Abalos, J.H.A. | Talavera, P.G. (Philippines Univ. Los Banos, College, Laguna (Philippines). Dept. of Veterinary Clinical Sciences)
A live, day-old male calf was brought to the U.P. College of Veterinary Medicine for identification of a congenital abnormality. The calf was unable to stand because its vertebral column apparently ended after the last rib, and there was lack of muscling of the hind limbs. Radiographic studies confirmed the absence of lumbar, sacral and coccygeal vertebrae. Subsequent necropsy reveal that the vertebral column ended at the last thoracic vertebra, and that the pelvic limbs were attached to the rest of the skeletal system merely by fibrous connective tissues. The lumbar, pelvic and pelvic-limb muscles were also not developed and there was arthrogryposis of the hindlind joints. Histopathology of the spinal cord showed neuronal necrosis with loss of dendritic processes. The gross developmental abnormalities observed are characteristics of perosomus elumbis which is a congenital abnormality of the nervous and musculoskeletal systems reported in domestic animals. Perosomus elumbis is a congenital defect characterized by failure of development of the lumbar spinal cord with its associated lumbar vertebrae, and atrophy of muscles innervated by the lumbar spinal segments (Jubb et.al., 1985). It has been reported in a number of domestic animal species such as sheep, pig, cattle and man (Cazabon et.al. 1994). This report will describe a case of perosomus elumbis in a native Philippine calf
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