A 45-year-old man presented with long history of lichen simplex chronicus on the right lower leg of > 5 years duration. At last one and a half year an ulcer has developed and progressed slowly. On examination,  an ulcer about 12 x 7 cm with an irregular outline, clean red base and punched out border surrounded by thickened dyspigmented skin was seen. Incisional biopsy revealed SCC.