Figure 1 'Porrigo decalvans', an early description of alopecia areata, from Delineations of Cutaneous Disease by Thomas Bateman, 1817. ª 2013 British Association of Dermatologists 960 Clinical and Experimental Dermatology (2013) 38, pp960-961 C P D ª 2013 British Association of Dermatologists Clinical and Experimental Dermatology (2013) 38, pp960-961 961 Historical vignette C P D