Transoral Robotic Surgery in Treating Patients With Benign or Malignant Tumors of the Head and Neck

Inclusion Criteria: * Patient must present with indications for diagnostic or therapeutic approaches for benign and/or malignant diseases of the oral cavity or laryngopharynx (including the neoplastic lesions of the tongue, tongue base, retromolar trigone, tonsils, palate, posterior and lateral pharynx, glottic, supraglottic and subglottic larynx) * Patients must have adequate transoral exposure of the oral cavity and laryngopharynx for TORS instrumentation * Written informed consent and/or Consent waiver by institutional review board (IRB) Exclusion Criteria: * Unexplained fever and/or untreated, active infection * Patient pregnancy * Previous head and neck surgery that would preclude transoral/robotic procedures. This is at the investigator's discretion. This is not an exclusion criterion for the non-surgical arm. * The presence of medical conditions contraindicating general anesthesia or transoral surgical approaches * Inability to grant informed consent * INTRAOPERATIVE EXCLUSION CRITERIA: * Inability to adequately visualize anatomy to perform the diagnostic or therapeutic surgical approach transorally