Scalding as an unusual cause of pyoderma gangrenosum

Pyoderma gangrenosum secondary to a scald wound to the posterior left shoulder. (i) Initial presentation of the lesion. Reddish-purple lesion with multiple sinuses exuding pus. There were no deep collections clinically or on ultrasound examination. (ii) Day 7 — the patient had been commenced upon oral Prednisolone and topical Dermovate NN^® twice daily. (iii) a: Day 10 — the wound continues to improve; b: day 10 — closer image of the pyoderma gangrenosum ulcer. (iv) Day 30 — topical therapy had been changed to Tacrolimus at day 14 and the wound continued to improve dramatically; a: day 30 — topical therapy had been changed to Tacrolimus at Day 14 and the wound continued to improve dramatically. (v) a: Day 60 — the ulcer has healed but a violaceous area still persists; b: day 60 — closer image of the area showing that the ulcerated area has healed.