When the foregoing communication by Schaffer and me1 was submitted for publication in 1933, Urbach's publications of 1932 and 1933 had not come to our attention. Since these publications are destined to play a large part in future considerations of the cutaneous lipoidoses, it is desirable to indicate what position the condition which we described as pseudodiabetic xanthoma occupies in relation to his classification.
It should be emphasized at the outset that the term pseudodiabetic xanthoma was submitted by us as an essentially clinical designation. Urbach's nomenclature, while based partly on the clinical features, stressed the pathologic changes (extracellular cholesterosis and lipoid proteinosis).2 Nevertheless, our case can still be fitted into Urbach's system, although our report admittedly had shortcomings in respect to some of the chemical determinations of the various lipoids concerned. On the basis of his classification, a special niche will have to be made, I
WEIDMAN FD. POSITION OF "PSEUDODIABETIC XANTHOMA'' AMONG THE LIPOID DISTURBANCES OF THE SKIN (URBACH). Arch Derm Syphilol. 1937;35(5):815–820. doi:10.1001/archderm.1937.01470230053002
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