Frontal sinus obliteration is performed for a variety of reasons, including chronic sinus disease, traumatic injuries, mucoceles, and osteomas of the sinus. Once the decision is made to obliterate the sinus, it is paramount that all mucosal remnants be removed and that the material used to fill the irregular expanses of the frontal sinus help prevent recurrence of the disease process. The materials most commonly used for this purpose are fat, muscle, and pericranium. Fat obtained from the abdomen, gluteal area, or lateral thigh is probably the most frequently used substance. The procurement of fat in the traditional way adds significant time to the operation and is associated with significant morbidity at the donor site. Fat obtained in this manner is often bulky and does not truly conform to the sinus contour. In an attempt to minimize operating time and donor-site morbidity--as well as obtain a more malleable graft--we used liposuction to obtain our fat grafts for sinus obliteration. Using this method, we were able to obtain an adequate amount of tissue from either the abdomen or lateral thigh in all patients. We have used this technique in eleven patients, with follow-ups ranging from 3 to 18 months. We have had no donor-site morbidity and (to date) there has been no recurrence of sinus disease in these patients. While the follow-up period is not adequate for final evaluation in these patients, we believe this is a valuable adjunct to frontal sinus surgery.