poliomalacia

poliomalacia

softening of the gray matter of the central nervous system.

focal symmetrical spinal poliomalacia
a disease of young sheep and of unknown etiology observed only in Kenya and characterized by focal softening of the gray matter of the spinal cord, especially the cervical cord, and paralysis especially of the forelimbs. Similar lesions and clinical signs are also observed in pigs, except that the paralysis is posterior. It is associated with selenium toxicosis.
References in periodicals archive ?
Foot clenching and weakness have been described in birds with cardiovascular disease (endocarditis, atherosclerosis), (24,25) poisoning (organophosphate, heavy metal), (26) orthopedic abnormalities (appendicular fracture, spinal trauma, degenerative joint disease), (27) metabolic abnormalities (hypocalcemia, hypovitaminosis B2, vitamin E and selenium deficiency), and neurologic disease (infectious or parasitic polioencephalomyelitis, poliomalacia, and ischiatic nerve compression), (28) but some cases remain idiopathic.