Fig. 1

a Findings of the nasopharynx before treatment. There were a raised nasopharyngeal lesion and a pus on the lesion. b Findings of the nasopharynx after adenoidectomy. Fur and black scabs for hemostasis had been attached to the wound. c 2 weeks later after surgery. There was a pus on the lesion. The pus on wound was appropriately removed by dealing and washed. d 4 weeks later after surgery. There was granulation rising in the wound. e 12 weeks later after surgery. The granulation remained but the wound was smaller gradually. f 20 weeks later after surgery. The wound is epithelialized and scarred