Early phase wound healing by primary intention as shown by ultrasonography

We present a series of high-resolution ultrasound images obtained during healing in children of appendicectomy wounds by primary intention. These show that the incision can easily be identified for several months after surgery although skin swelling subsides rapidly. Fluid collections and gas are not usually seen in uncomplicated appendicectomy wounds, whereas some degree of oedema and exudation can be expected in the first few days post-operatively and suture material can be identified for six to eight weeks. Some knowledge of the normal appearance of these wounds is clearly of help when investigating wounds in which complications are suspected. The normal features of ultrasound images of healing abdominal wall incisions in uncomplicated appendicectomy are demonstrated. This knowledge should assist in interpretation of abnormal findings when healing does not progress as expected.