What is the difference between Avoidant Personality Disorder and Social Anxiety Disorder?

This video describes differences between Avoidant Personality Disorder and Social Anxiety Disorder. Avoidant Personality Disorder is characterized by fear of social situations, social inhibition, panic attacks, isolation, low self-esteem, low self-confidence, and feelings of inferiority. Social Anxiety Disorder is similar, but the symptoms are less severe. Social Anxiety Disorder is often associated with increased insight, better prognosis, and higher self-esteem as compared to Avoidant Personality Disorder. The counseling treatments for both disorders are usually similar.