Good Call Rob!
I have had false negatives with a PET scan and FNA in relation to a cancerous node that was identified as suspicious on a CT scan. The decision when faced with the conflicting information was to remove the suspicious node, do a frozen section, then if it came back positive (which it did), proceed to conduct a selective neck dissection. This was the only positive node, but due to extracapsular spread I then had chemo/radiation.
On the whole I have to say the impact of the ND was not as great as the Radiation.....but I do have a crooked smile!
All the best!
Sue