Cerebellar Cortical Abiotrophy in Young Labrador-Retrievers.

Cerebellar abiotrophy is a hereditary degenerative disorder of the central nervous system in humans and animals. Four male and one female Labrador-retriever pups were presented with clinical signs of head swaying with intention tremor, loss of target oriented movement, wide base stance, forelimb hypermetria, and hindlimb ataxia leading to falling off during ambulation. On histopathologic examination of cerebellum, cerebellar cortical abiotrophy was confirmed with extensive loss of Purkinje cells, diminution of granular layer, relative thickening and foliar gliosis in white matter.