According to AJCC 8th edition, staging of 2 cm size Pancreatic cancer if it involves portal vein is?

Surgery

According to AJCC 8th edition, staging of 2 cm size Pancreatic cancer if it involves portal vein is?

A tender swelling in submandibular triangle is mostly likely diagnosed as

In transfacial proportions, the face Is divided into how many segments:

Specific for Ankylosing spondylitis is true?