Mohs Surgery, create by a general surgeon, Dr. Fredrick E. Mohs, is microscopically controlled surgery that is highly effective for common types of skin cancer, with a cure rate cited between 97 to 99% for basal cell carcinoma, the most common type of skin cancer, and for squamous cell carcinoma. It has been used in the removal of melanoma-in-situ, but this is an unproven treatment. Because the Mohs procedure is micrographically controlled, it provides precise removal of the cancerous tissue, while healthy tissue is spared. Mohs surgery is relatively expensive when compared to other surgical modalities. However, in anatomically important areas (eyelid, nose, lips), tissue sparing and low recurrence rate makes it a procedure of choice by many physicians.