On One Condition – Difference Between Trigger Finger and Dupuytren’s

What is the difference between Trigger Finger and Duputreyn’s?
What are the causes of Trigger Finger and Duputreyn’s?
What are the symptoms of Trigger Finger and Duputreyn’s?
How can we assess for Trigger Finger and Duputreyn’s?
How is the treatment for Trigger Finger and Duputreyn’s?