Mohs surgery: techniques, indications, and applications in head and neck surgery. 
Mohs surgery, as it has evolved since its inception by Dr. Mohs, is a technique for removal of certain cancers using careful, precise microscopic marginal control.  The contemporary technique using fresh tissue is detailed, illustrating advantages that include maximal conservation of normal surrounding tissue and structures, an extremely high cure rate, and a tumor-free defect which can be reconstructed immediately.  The indications and applications for Mohs surgery, once limited to large recurrent basal cell carcinomas, have expanded to include several cutaneous and paracutaneous neoplasms.  These, with an emphasis on certain basal cell carcinomas, are discussed in detail.  With better understanding of the Mohs technique, its indications, applications, and advantages, an interdisciplinary approach to certain cutaneous and paracutaneous neoplasms is proposed.