Hydrocephalus
This disease is caused by retention of edematous fluid in the
cerebral ventricles during the fetal period and is frequently observed
in cattle and horse. The cerebral ventricles gradually dilate, and the
brain parenchyma becomes thinner. Since many cranial sutures become
separated, the head is very large compared with the face, and the skull
is round. This causes difficulties in delivery. Hydrocephalus is considered
to occur secondary to hypoplasia of the cerebral ventricles in the parturient
canal, or due to impaired excretion of cerebrospinal fluid caused by choroid
plexus inflammation in the early fetal stage. (register No. 0607)
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Masanobu Goryo
Address inquiries to the following.
E-Mail:goryo@iwate-u.ac.jp
Department of Veterinary Pathology, Faculty of Agriculture,
Iwate University., Morioka, 020-8550, Japan