Testicular hypoechoic mass with back pain in a patient of age 30 years. Best tumor marker?

Surgery

Testicular hypoechoic mass with back pain in a patient of age 30 years. Best tumor marker?

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?