A 45-year-old man has had long history of lichen simplex chronicus at the right lower leg of > 5 years duration. At last one and a half year an ulcer has developed and progressed slowly. O/E, an ulcer about 12X7 cm with an irregular outline, clean red base and punched out border surrounded by thickened dyspigmented skin was seen. Incisional biopsy revealed SCC.