Non Elective Vulnerable Elderly Radiotherapy

Inclusion Criteria: * locally advanced non-metastatic HNSCC patients older than 70 years * Primary tumor clinically and radiologically detectable and measurable (staging according to ed. TNM VII and also VIII. * patients defined by the tumor board (ENT, Oncologist, Radiotherapist, Nutritionist) as 1) not eligibles for RTCT / RT-cetuximab treatment 2) not amenable to radical surgery and 3) not candidates for treatments with palliative intent/best supportive care * Availability of staging with CT/PET for distant metastasis and CT/MRI for primary tumor * Karnofsky performance status (KPS) ≥60/100 * Oropharynx , Hypopharynx and Larynx, Oral cavity: stage III and IV and Unknown primitive P16-POSITIVE Exclusion Criteria: * Age less than 70 years * Staging exams done 45 days before the date of the beginning of the treatment * Subsites: nasopharynx, salivary glands, paranasal sinuses. Metastatic disease * Gross total excision * All subsites concerned if N3. * Squamous cell neoplasms of the glottic larynx T1-T2 N0. * Unknown primary HPV negative or EBV positive. * Presence of distant metastases or sub-clavicular lymphadenopathies. * Previous surgery on T and/or N except diagnostic tonsillectomy. * 3D-conformational radiotherapy technique