Fig. 39. Chronic dermatophytosis of the hands and fingernails (T. purpureum). A, con- 

 dition which involved all the fingernails and toenails. Dull red, scaly and infiltrated lesions may 

 be seen on the backs of the fingers and hands. B, fingernails showing different degrees of 

 destruction. The infection usually progresses slowly. {Courtesy of Royal Montgomery.) C, 

 dry intertrigo of the finger webs. D, advanced and early manifestations. The nails of the ring 

 and little fingers show friable opaque yellow areas at the proximal portions, where the infection 

 was introduced by a nail file. E and F show fingers and fingernails of a school teacher who had 

 had the infection for 17 years. The moth-eaten appearance of the nails and the thickened scaly 

 skin arc well shown. 



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