The diverse manifestations of the acute and subacute types of lupus erythematosus are well recognized, yet the existence of the multiform features of the chronic variety have not been amply appraised. Almost a half-century ago Crocker1 discussed some of the unusual clinical phases of chronic lupus erythematosus and described cases in which the condition simulated lichen planus and lupus vulgaris.
A diagnosis of the ordinary superficial chronic forms of this disease rarely taxes the astuteness of the dermatologist; yet its variants are difficult of perception, and reliance for diagnosis rests with the combination of histologic observations and an intimate clinical familiarity with the diverse manifestations. Also of particular microscopic significance is the noting on occasion of a tuberculoid structure, in contradistinction to the common superficial chronic types, in which this architectural configuration is rare.
The clinical phenomena of chronic lupus erythematosus vary with the intensity and points of maximum
IRGANG S. LUPUS ERYTHEMATOSUS PAPULARIS ET NODULARIS. Arch Derm Syphilol. 1941;43(2):281–298. doi:10.1001/archderm.1941.01490200063006
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