TINEA FLAVA 



2077 



Prognosis. — The disease is very chronic and has no tendency what- 

 ever to spontaneous cure, but the general health is not affected. 



Diagnosis. — Pityriasis versicolor of temperate zones is not of so 

 light a tinge as tinea fiava, never attacks the face, and is curable 

 with the greatest facility; while tinea fiava affects the face more 

 frequently than any other part of the body, and is curable only 

 with difficulty. 



Tinea Alba. — Occasionally there may be some difficulty in dis- 

 tinguishing tinea flava of a light variety from tinea alba. In con- 

 trast to tinea flava, the patches of tinea alba are not smooth, and 

 the fungi belong to the genera Trichophyton and Epidermophyton. 



Fig. 826. — Tinea Flava on the Back of a European. 



Tinea Flava and Pinfa are easily distinguished by the characters 

 of their respective fungi, (the fungus found in pinta never having 

 the characters of a. Malassezia. 



Leiicoderma patches have a characteristic dead-white colour, 

 are often surrounded by a hyperpigmented border, and no fungus 

 is found. \ 



In Circumscribed Scleroderma (Morphoea) the patches may present 

 a peculiar yellowish tinge, which in coloured patients may resemble 

 tinea flava. In tinea flava, however, there is no change in the 

 texture of the skin, which is still pliable, and does not exhibit the 



