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JAMA. 1937;108(5):361-366. doi:10.1001/jama.1937.02780050017006.
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Pruritic and scaling dermatoses of the ears are frequently encountered by both the aurist and the dermatologist. Various terms, such as "eczema" and "seborrheic dermatitis," are applied to them. Retroauricular intertrigos, with serous crusting, scaling and fissuring, are not infrequently seen and are recognized by many as due to a streptococcus. Itching and scaling of the cavum, auditory meatus and canal, however, are not so readily accepted as being of streptococcic origin, particularly in America. In this country the tendency seems to be to regard itching of the canals as "eczema" or as a mycosis, judging from the replies to queries in both the medical and the lay press, and from what patients say they have been told by various physicians. It is true that an infection by Aspergillus niger occurs in the canals, but in my experience that infection is extremely rare and is readily recognized; clinically by the


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