Sudden, severe pain typically with rapid acceleration or pivoting
May hear a "pop"
Inability to run, stand on toes, or climb stairs
Palpable defect in<unk>  tendon 2-6cm proximal to calcaneus (SN 73% and SP 89% for partial tear)
20-30% of<unk> s will have some amount of active plantar flexion or be able to walk
Achilles tendon rupture
Biceps tendon rupture
Calcaneal bursitis
Quadriceps tendon rupture
Cellulitis
Triceps tendon rupture
Compartment syndrome
Acromioclavicular joint injury