Biceps Tendon Tendonitis on POCUS Patient presents with left shoulder pain. The sono-anatomy is labeled. Tendons, nerves, and muscle exhibit anisotropy, making them look hypoechoic depending on the angle of insonation. There is fluid around the biceps tendon in this clip, concerning for a partial tear or tendonitis. Dr. Meghan Herbst @EUSmkh #Biceps #Tendon #Tendonitis #POCUS #clinical #msk #ultrasound #anatomy #labeled