Page:Transactions of the Royal Society of Tropical Medicine and Hygiene, volume 1.djvu/315

 especially when it presents a coppery colour, might be confounded with a syphilide, and several patients thought they were suffering from S3^philis. The absence of other signs and the microscopical examination will clear the diagnosis. Of course, Tinea rosea may be seen in syphilitic subjects, and in such cases microscopical examination alone can render the diagnosis exact.

Treatment. — The eruption is easily cured : a salicylic- alcohol lotion (2 to 4 per cent.), followed by a resorcin and salicylic ointment (10 per cent, resorcin and 2 per cent, salicylic acid), generally gives good results. Tr. iodine also answers well.

REFERENCES.

Castellani : British Medical Journal, November, 1905 ; Transactions of the International Congress of Dermatology (New York, 1907) ; Ceylon Medical Reports, 190.5, 1906, 1907. R. Crocker : Skin Diseases, 1905. Jeanselme : Dermatologie Exotique, Paris, 1907. Nieuwenhuis : Archiv fiir Dermatologie u. Syphilis, 1908. Rho : Mallattie dei Paesi Caldi. Sabouraud : Archives de Medicine Experimentale, 1907. Tribondeau ; Quoted by Crocker and Mauson. Wehmer: Centralb. fur Bakteriol., 1903.

Discussion.

Dr. Pernet said with regard to the variety of trichophyton, with which the author had been good enough to identify his (Dr. Pernet's) name, that some years ago when examining in this country dhobie itch cases which had come from India, China, and South Africa, he had twice obtained cultures of a rosy pink growth. He had been able to obtain several specimens of Tinea imbHcata, but although he had tried a good many media he had utterly failed to get a satisfactory cultivation of that variety. It was obvious that in tropical ring-