“…The distribution of the arteritis is similar as is the histology, giant cells occurring in the early stages of Takiyashu's disease (Judge et al, 1962) and not being a feature of long standing giant cell arteritis (Fauchald, Rygvold and Oystese, 1972). In giant cell arteritis overall, however, unlike Takiyashu's disease, there is only a minor predominance of women; of 613 cases from the literature, 254 were male and 359 female (Alestig and Barr, 1963;Bruk, 1967;Cardell and Hanley, 1951;Cook et al, 1946;Gilmour, 1941;Hamilton et al, 1971;Landberg, 1964, 1965;Hamrin, Jonsson and Hellsten, 1968;Harrison and Bevan, 1967;Hunder and Sheps, 1967;Jennings, 1938;Paulley and Hughes, 1960;Pollock et al, 1973;Reid, 1957;Rolland et al, 1973: Thompson et al, 1971 and this difference can be largely accounted for by the sex ratios in the older age groups. However, of fifteen cases where the subclavian arteries were definitely involved clinically (Alestig and Barr, 1963;Bruk, 1967;Hamilton et al, 1971;Hamrin et al, 1968;Jennings, 1938;Paulley and Hughes, 1960;Pollock et al, 1973;Reid, 1957;Rolland et al, 1973;Thompson et al, 1971), only two were male, the difference in sex ratio being significant (P < 005 >0 02).…”