Margins

Question 1

Definition of Adequate CLINICAL Margins for mucosal disease (3)

Answer 1

1. Clear Frozen section margins OR
2. 1.5-2cm of visible/normal mucosa OR
3. 1.5-2mm for laryngeal surgery

Question 2

Definition of a CLEAR MARGIN?

Answer 2

> 4mm

Question 3

Definition of a CLOSE MARGIN?

Answer 3

<5mm (similar prognosis as positive margins)

Question 4

Definition of a POSITIVE MARGIN?

Answer 4

1. Tumour at line of resection

2. Carcinoma-in-situ at line of resection (but CIN not an indication for post op ChemoRT)