Horton and Magath1 reported eight cases of temporal arteritis in 1937. Five of these they had studied personally. One of the cases occurred in Uruguay. The same year MacDonald and Moser2 reported a case and compared the disease with periarteritis nodosa. Jennings3 reported two cases from England in 1938 and discussed the similarity of temporal arteritis to periarteritis nodosa, thrombo-angiitis obliterans and rheumatic arteritis. Two more cases are described here.
There is a striking similarity clinically and pathologically among all the cases that have been described in detail. The range in age has been between 55 and 80 years, the average being 67. Six of the thirteen patients were between 65 and 70. More women than men have been affected. Weakness and general malaise prior to and during the local involvement of the arteries about the head were common. The prodromal symptoms varied in duration from two