A 54-year-old construction worker has smoked two packs of cigarettes daily for the past 25 years. He notes swelling in his upper extremity and face, along with dilated veins in this region. A computerized tomography (CT) scan and venogram of the neck are performed. What is the most likely cause of the obstruction?

Surgery

A 54-year-old construction worker has smoked two packs of cigarettes daily for the past 25 years. He notes swelling in his upper extremity and face, along with dilated veins in this region. A computerized tomography (CT) scan and venogram of the neck are performed. What is the most likely cause of the obstruction?

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?