Ward P H, Calcaterra T C, Kagan A R
Laryngoscope. 1975 Mar;85(3):522-9. doi: 10.1288/00005537-197503000-00009.
Persistence of significant edema of the larynx beyond six months after completion of radiotherapy presents the laryngologist with a diagnostic dilemma. Review of the results of 43 cases demonstrated a high incidence of residual or recurrent carcinoma. Based upon this experience earlier and frequent laryngeal biopsies are recommended for these cases.