Ulcerative lichen planus is a rare variant of lichen planus presenting with chronic, painful bullae and ulceration of the feet, often with cicatricial sequelae evident.
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Famous quotes containing the word lichen:
“The lichen on the rocks is a rude and simple shield which beginning and imperfect Nature suspended there. Still hangs her wrinkled trophy.”
—Henry David Thoreau (1817–1862)