A 64-year-old man develops increasing dysphagia over many months. A barium swallow is performed. What is the most likely cause of his clinical presentation?

Surgery

A 64-year-old man develops increasing dysphagia over many months. A barium swallow is performed. What is the most likely cause of his clinical presentation?

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?