Centrally located tumor. 83 years; central squamous cell carcinoma, 4 cm ∅, atelectasis upper lobe, paralysis phrenical nerve with elevated diaphragma; enlarged PET-positive ipsilateral mediastinal nodes. A. Scheme; position of junction plane and upper and lower borders, doses (Gy). B. Treatment plan single fraction. C. Overall treatment plan. D. DVHs.