"Extracellular cholesterinosis'' was the term which Urbach used to designate a unique dermatosis which he studied in great detail in association with Epstein and Lorenz. The observations of these workers, including the results of metabolic and histochemical determinations, were published in several contributions in 1932 and 1933.1 The patient whose condition they investigated was first presented by Professor Kerl2 before the Vienna dermatologic society on Oct. 22, 1930, as exhibiting "multiple nodule formation containing much lipoid.'' In discussing the condition at that time Urbach maintained that the disease could be differentiated from xanthoma histologically although the two conditions were similar clinically. Kerl3 reported the case in greater detail in 1932. As far as can be ascertained, there have been no other reports concerning extracellular cholesterosis.
For several years a patient with an extremely odd dermatosis was under the care of Dr. Henry Michelson; that patient
LAYMON CW. EXTRACELLULAR CHOLESTEROSIS. Arch Derm Syphilol. 1937;35(2):269–284. doi:https://doi.org/10.1001/archderm.1937.01470200069010
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