During the latter months of 1947 and in 1948, a new disease of the fingernails was widely reported in the medical literature.1 It was caused, invariably, by nail "undercoats" or "base-coats" and was manifested by pigmentation of the fingernails, separation of the nails from the nail beds (onycholysis), accumulation of warty debris beneath the free edges of the nails (hyperkeratosis), and tenderness of the finger tips. The cause was obviously local and not systemic.2 No dermatitis of the face, eyelids, neck, or conchae was associated, as in the common type of allergic-eczematous dermatitis due to nail polish.3 It was generally agreed that the mechanism responsible for the newly described disorder was on an allergic-eczematous rather than on a primary irritant basis.
In the case herein reported, there were identical clinical manifestations following the use of artificial fingernails.
REPORT OF A CASE
M. F., a 36-year-old housewife, consulted
Frumess GM, Lewis HM, Henschel EJ. DISTURBANCE OF NAILS AND NAIL BEDS PRODUCED BY ARTIFICIAL FINGERNAILS. JAMA. 1952;149(9):828–829. doi:10.1001/jama.1952.72930260003009a
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