Retrospective Review of Reconstructive Methods of Conchal Bowl Defects Following Mohs Micrographic Surgery

Background. Mohs micrographic surgery has consistently been demonstrated to be the most effective method for excision of potentially aggressive lesions of the conchal bowl. A variety of techniques are employed to reconstruct the conchal bowl following surgery. Objective. To explore the type and frequency of reconstruction techniques used and the factors influencing the surgeons choice of reconstruction method. Method. Retrospective analysis of 272 patients with conchal bowl tumors. Results. Split thickness skin grafting was the preferred method of reconstruction. The histopathology of the lesions and the size of the post-Mohs defect did not influence the choice of technique, except for lesions less than 1 cm in which healing by secondary intention was favored. Conclusion. Tumor size, type, and aggressiveness did not influence repair technique choice. Surgeon preference was therefore the principle factor dictating method of reconstructive technique following Mohs micrographic surgery.