Which of the following immunohistochemical markers would be expected to be positive in biopsies of Ewings Sarcoma?

Surgery

Which of the following immunohistochemical markers would be expected to be positive in biopsies of Ewings Sarcoma?

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?