Subtitle
Long-Term Outcomes Following Definitive or Adjuvant Proton Radiotherapy for Adenoid Cystic Carcinoma.
This study from the Jacksonville group reported treatment outcomes of 56 patients with de novo, nonmetastatic ACC of the head and neck treated with definitive (n = 9) or adjuvant PT (n = 47). With a median follow-up of 6.2 years, the 5-year local-regional control (LRC), disease-free survival, cause-specific survival, and overall survival rates were 88%, 85%, 89%, and 89%. The 5-year cumulative incidence of clinically significant grade ≥3 toxicity was 15%respectively. The authors concluded that PT can provide excellent disease control for ACC of the head and neck with acceptable toxicity.