Are sarcomatoid carcinomas of the larynx classified with TNM just like the squamous cell carcinomas?
Yes, they are classified with the same criteria. It would be useful to separate sarcomatoid carcinomas from other types so that they can be analysed as a distinct group. 2.2 Oesophagus 2.2.1 Is a tumour of the oesophagus with invasion of perioesophageal fatty tissue without infiltration of adjacent structures classified as pT3 or pT4? Does the perioesophageal fatty tissue belong to the mediastinum and thus to adjacent structures? The described situation is classified as pT3. The fatty tissue belongs to the adventitia and not to adjacent structures such as bronchus, heart, pericardial sac and aorta. 2.2.2 For tumours of upper thoracic oesophagus what is the difference between pN1 and pM1a, because the definition of regional lymph nodes of the cervical oesophagus includes supraclavicular lymph nodes? For the thoracic oesophagus, including the upper thoracic, the cervical lymph nodes are not regional nodes. For the cervical oesophagus, the regional nodes are the cervical nodes. (See TNM 6
