I have pain in shoulder that radiates into right shoulder blade, armpit, down my arm into the palm of my hand. Previously had 2 cortizone injections over last 1.5 yrs. for rotator cuff inflammation.  Never pain in my armpit, forearm or hand though until now. Thanks!
Hi there. Firstly rotator cuff pain is more localized to the region around the shoulder. What you might be having here would probably be a nerve compression. This can happen at the level of your spinal cord, vertebrae to the many nerves supplying your hand. So if a patient presented to me that's what I would be ruling out. Especially since you mentioned that your pain is radiating, that is why I would be suspecting this all the more. You need a checkup of your right upper limb muscles to see if there is any associated weakness or any sensory loss, and a spine evaluation as well. Its also more likely if you had any history of doing any strenuous activity or trauma in the recent past. So I would suggest that you get yourself evaluated for the same.