Fanti P A, Mattioli D, Morelli R, Varotti C
Department of Dermatology, University of Bologna, Italy.
Cutis. 1991 Sep;48(3):227-9.
Two patients showed hypertrophic lichen planus at the sites of previous surgical procedures in their lower extremities after granulomatous reactions. Knots of implanted sutures too close to the epidermis may have caused the inflammatory reaction. Although granulomatous reactions occurring after surgical procedures are fairly common, no cases of lichenoid lesions have been reported previously.