Fig. 1

Appearance of the skin after left upper lobectomy. 11POD: Ulceration was consistent with the surgical wound. Extensive erythema was observed around the wound. Yellow necrotic tissue was observed at the abyss of the wound. 18POD: After treatment with tacrolimus ointment. Reddish shallow ulcers and erosions spread to 1.5-cm margins of the largest ulcers. The erythematous area was shrinking. 48POD: All ulcer areas are epithelialized. The open wound is closed. POD postoperative day