To the Editor.—
The development of unusual changes in hypertrophic lichen planus may indicate the development of epitheliomatous change. We wish to report a case of hypertrophic lichen planus that changed its clinical appearance as a result of underlying xanthoma formation.
Report of a Case.—
A 33-year-old man was referred to Royal Brisbane Hospital in 1969 with recurrent bouts of jaundice, abdominal pain, and fevers. A cholecystoduodenostomy was performed to relieve a strictured common bile duct. He remained well until 1972 when he presented with recurrence of his symptoms. He was noted to have a large plaque of hypertrophic lichen planus on his right shin with smaller areas on the left. These had been present for two years. The diagnosis was confirmed by biopsy. Mild diabetes mellitus and chronic pancreatitis had also developed. A further drainage procedure was carried out on his common bile duct. He remained well until
Weedon D, Robertson I. Lichen Planus and Xanthoma. Arch Dermatol. 1977;113(4):519. doi:10.1001/archderm.1977.01640040127024