Rapidly enlarging large B-cell lymphoma neck mass causing airway obstruction. (A) Pre-RF ablation CT scan shows a large right cervical mass with extensive tracheal deviation with compressed airway expanded by endotracheal tube (large arrow) and RF ablation needles (small arrow) within cervical mass. (B) Post-RF ablation CT demonstrates a devascularization and reduction in cervical mass and improvement of tracheal deviation with shift of trachea (arrow) to midline.