A 78-year-old woman was admitted for persistent leg ulcer. She had untreated Paget disease of the bone (PDB) of the right forearm and leg since 1995 and denied taking any drugs. Her ulcer appeared spontaneously 2 months prior to admission as irregular and painful round erosions that evolved into a larger ulcer on the right leg. The wound was fibrinous with irregular and atonic sides (Figure 1). She presented with hyperconvexity of the right forearm and leg and complained of chronic pains in the same areas. There was no clinical sign of venous insufficiency or arteriopathy and no hypertension.