Dermatomycoses have attracted so much attention during the past fifteen years, and their characteristics are so readily recognized that many clinicians do not hesitate to make a diagnosis without the aid of either the microscope or the culture tube. Failure to demonstrate the fungus by either one or both of these diagnostic aids does not, according to some, invalidate the diagnosis. Thus, Stauffer1 described in great detail a case of eczematoid and furunculoid trichophytid, but dismissed the question of the causative fungus by saying that all cultures were negative. No mention is made of microscopic observations of the original lesion. There were, no doubt, excellent reasons for believing the case to be of mycotic origin; however, this illustrates the tendency to regard the demonstration of the fungus as of minor importance in the record.
In our early work on the dermatomycoses, Dr. Ormsby and i2 made it a
MITCHELL JH. AMYCOTIC DERMATOSES SIMULATING RINGWORM AND EROSIO. INTERDIGITALIS BLASTOMYCETICA. Arch Derm Syphilol. 1929;19(4):659–670. doi:10.1001/archderm.1929.02380220128007
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