Is there a difference between slap tear and bicep tendon tear of the shoulder?

Yes: 'slap' tears are labral( cartilage) tears that occur anterior ( in the front of) and posterior ( in the back of), the long head of the biceps tendon in the shoulder joint(hence: acronym slap).Some slap tears involve the biceps anchor itself( type 2) and can cause pain/ popping etc... The biceps tendon can tear in isolation or w/ the rotator cuff tendon(s)... Hope this helps...!