BY M. L. HEIDINGSFELD, M.D.
Lecturer on Dermatology and Syphilology, Laura Memorial Medical College, Dermatologist to Presbyterian Hospital; Clinical Demonstrator of Dermatology, Medical College of Ohio.
Authorities are almost universal in their opinions that the pathological change in leuconychia is due to an infiltration of air as first established by Morrison, Bielschowsky, and Unna. This opinion is shared by Max Joseph, Norman Walker, Columbini, Jackson, Hardaway, Duhring, and numerous others. Some writers express a great deal of doubt concerning these observations, but all, as far as we have been able to determine, fail to offer a rational explanation on a different hypothesis. Skepticism regarding a rational physiological basis of the air theory induced a histological study of a few cases. . . .
JOURNAL OF CUTANEOUS AND GENITO-URINARY DISEASES. Arch Dermatol. 2000;136(11):1305. doi:10-1001/pubs.Arch Dermatol.-ISSN-0003-987x-136-11-dac9013