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Results for “ENCEPHALOMALACIA”

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PubMed1975

Multiple cystic and focal encephalomalacia in infancy and childhood with brain stem damage.

Two cases are described in which damage to the brain stem was associated with extensive necrosis of the cerebral hemisphere. In the first case--a monochorionic twin--there was clear evidence that injury of an ischaemic or hypoxic type had occurred during fetal life and some evidence that an inadequate share of the placental circulation was an important aetiological factor. In the second case death occurred 4 yr after an asphyxial episode at birth. The lesions in the hemispheres and brain stem were extensive, although less than in the first example. The lesions are discussed in the context of our knowledge of the anatomy and physiology of the developing nervous system. Although they cannot as yet be fitted into the concepts of "critical periods" and "vulnerable periods" of development, this is perhaps because observations on human cases are scanty in comparison with the extensive animal studies which have been reported. The lesions are contrasted and compared with those seen in animals.

Asphyxia Neonatorum↗
PubMed1993

Immunohistological study of encephalomalacia in pigs infected with Aujeszky's disease virus.

Seven hysterectomy-derived colostrum-deprived pigs aged 4 weeks were inoculated intranasally with 10(3) plaque-forming units (1 ml) of the Yamagata YS-81 strain of Aujeszky's disease virus. One pig died and five developed encephalomyelitis and trigeminal ganglionitis. Three pigs killed on days 12-16 showed prominent malacic degeneration. Associated with the malacic foci were many lysosome-positive cells. IgG- and IgM-containing cells in the perivascular cuffs and glial nodules were first detected on day 7, after which they increased in number. They were thought to be closely associated with the presence of neutralizing antibody. These findings suggest that inflammatory cells in the brain are of haematogenous origin.

Animals↗