Keypoints
- The concept of ‘field cancerization’ applies to patients with head and
neck squamous cell carcinoma
- Synchronous, multifocal malignancies can occur along the upper
aerodigestive tractwith common exposure to tobacco and alcohol
- Oesophagoscopy is recommended for screening synchronous
oesophagealmalignancies in particular for patients who are smokers or
drinkers, male patients and hypopharyngeal cancer patients
- Bronchoscopy is not recommended for screening synchronous lung
malignancies
- Endoscopy using trans-nasal flexible endoscopic technique is well
tolerated with extremely low complication rate