“…In 1956 two more papers appeared, one by Fairburn and Oliver and the other by Lindgren, reporting a total of five cases of cerebellar infarction presenting as posterior fossa mass lesions. Since then, a steady reporting of small series from centers in the United States (Wood, 1969;Lehrich, 1970;Momose, 1973;Duncan, 1975;Ferguson, 1976;Gwang, 1977;Arnow, 1978;Feely, 1979), Canada (Norris, 1969), France (George, 1978;Geraud, 1978), Belgium (DeRueck, 1978), Russia (Nikonova, 1977;Levina, 1978;Vereshchagen, 1978;Nakhapeton, 1979), Japan (Ivamoto, 1974;Miki, 1978), have indicated a widespread distribution and a low, but not rare incidence.…”