Can scar tissue be viewed from an Ultrasound machine on a muslce that was possibley injured from a strain. If there is scar tissue there could it cause pain in the hands, wrisits and cause muscle tension in the forarms a year later by reinjuring that muscle do to a repetative work such as typing? The muscle that wass possibley injured was the left upper back muscle around the back shoulder blade. A year later, I typed too much in one day and I have had pain starting with the hands all the way up to that muscle area. I have seen 3 doctors trying to find out what is wrong and can't get a diagnosis. Im making another appointment with another to beg for an MRI of all these areas to check for tendonitis and etc...