Fig. 10. Favus of the scalp. A, early single patch with trusts but no alopecia. Regrowth 

 oi hair occurred, and there was no resultant atrophy. />. untreated involvement of short dura- 

 lion, showing thick crusts but no demonstrable atrophy. C, multiple foci ot infection with 



crusting. The areas of alopecia are the result of manual epilation. Complete regrowth of hair 

 occurred without atrophic changes of the scalp. D, scutula with small atrophic areas; the 

 process was of 15 years' duration. E, condition of long duration, showing an atrophic patch 

 with active spreading infection. F, result of neglected infection, with atrophy ol the scalp and 

 permanent alopecia. 



57 



