In a 27 yr old male most common cause of a colovesical fistula would be –

Surgery

In a 27 yr old male most common cause of a colovesical fistula would be –

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?