How is achilles paratenonitis distinguished from achilles tendonitis?

Crepitus: In acute paratendonitis, there is crepitus on palpating the tendon area along with tenderness.

Irritat'n of cover'g: Initially, irritation of the outer covering of the tendon called the paratendon causes a paratendonitis. The word paratendonitis simply indicates that there is inflammation around the tendon. Inflammation of the tendocalcaneal bursa may also be present with the paratendonitis.Either of these conditions may be due to repeated overuse, or ill-fitting shoes that rub on the tendon.