It has been my good fortune to be able to report this extremely rare and interesting case. The rarity of the disease and the multiform character of the lesions are of sufficient interest in themselves. In addition, the case serves as a corroboration to one of the conclusions reached in a previous article,1 namely, that lichen planus and lichen acuminatus are closely related to one another. One of the arguments on which this conclusion is based is the comparative frequency with which the two diseases occur at the same time in the same person.
There are a number of cases on record that have points in common with this one, but after diligently searching the records, I fail to find a single case that corresponds to it in all particulars.
Dermatology is extremely rich in names. The rarer diseases especially have each been described under several headings. Many writers
FELDMAN S. LICHEN PLANUS ET ACUMINATUS ATROPHICANSLICHEN PLAN ATROPHICUS, LICHEN PLAN SCLEREUX, HALLOPEAU; LICHEN RUBER PLANUS KELOIDIFORMIS, PAWLOW; LICHEN PLANUS MORPHOEICUS, CROCKER; LICHEN ALBUS, ZUMBUSH. Arch Derm Syphilol. 1922;5(1):102–113. doi:10.1001/archderm.1922.02350260105011