2o68 



TROPICAL DERMATOMYCOSES 



much more marked. The disease is very chronic and very difficult 

 to cure. In many cases the blood shows a certain degree of 

 eosinophilia, the number of eosinophile leucocytes varying between 

 6 and i6 per cent. In some cases the eosinophilia is probably 

 due to the presence of intestinal worms; the eosinophilia is, however, 

 observed also in some cases in which the microscopical examination 

 of the faeces does not show any ova of worms. In very old cases 

 the eosinophilia is more marked than in recent ones, and signs of 

 anaemia may be present. 



Clinical Varieties.^ — The eruption may after a time or from the very 

 beginningjhave a diffuse appearance instead of that of concentric 



Fig. 8i8. — Experimental Tinea Imbricata obtained by inoculating 

 C ultures of Endodermophyton tropicale. 



rings. The scales, however, are typical and identical to those found 

 in the concentric type — viz., they are large, tissue-paper-like, 

 partially covering each other like tiles on a roof, and most of them 

 firmly adherent by their bases. One variety of the disease is 

 characterized by the facility with which extensive pieces of epi- 

 dermis can be stripped off — a condition almost comparable to 

 moulting. 



The same fungus — viz., either Endodermophyton tropicale or 

 E. indicum — may give rise at times to the concentric type, at other 



