CPT® Code 64792

Neurofibromas are tumors that develop from nerve fibers, specifically arising from the proliferation of Schwann cells, which are essential for the proper functioning of peripheral nerves. These tumors are among the most prevalent types of peripheral nerve tumors and can manifest as solitary growths or, more commonly, in multiples as part of a genetic condition known as neurofibromatosis. Neurofibromatosis is characterized by a wide spectrum of severity, ranging from mild cases with limited tumor formation to severe instances where numerous tumors can lead to significant health complications. While most neurofibromas are benign, certain types, such as plexiform neurofibromas, have the potential to undergo malignant transformation, posing a greater risk to the patient. Plexiform neurofibromas are particularly notable as they involve a long segment of a nerve or multiple nerves, complicating their management. On the other hand, neurolemmomas, also known as schwannomas, are tumors that arise from the outer sheath of Schwann cells, known as the neurolemma. The excision of these tumors, particularly extensive or malignant types, is addressed under CPT® Code 64792. This procedure involves a surgical approach similar to that used for less extensive tumors, but it may require more comprehensive dissection and the removal of multiple tumors within the same area or the excision of malignant lesions, ensuring thorough treatment of the affected nerve structures.