An elderly man presented with classic findings of acute temporal arteritis. Treponema pallidum was identified both in the superficial temporal artery and in the aqueous humor, when stained with fluorescein tagged anti-T pallidum globulin. Study of nine cases of biopsy proven temporal arteritis revealed reactive serum fluorescent treponemal antibody absorption (FTA-ABS) tests in four cases. The clinical significance of these observations is evident.
Smith JL, Israel CW, Harner RE. Syphilitic Temporal Arteritis. Arch Ophthalmol. 1967;78(3):284-288. doi:10.1001/archopht.1967.00980030286005