Plexopathies are a form of peripheral neuropathy (i.e., a form of damage to peripheral nerves).
Depending on the source of the damage, treatment for plexopathies can include direct surgical correction, medication to relieve pain, and/or physical therapy.
Common plexopathies include brachial plexopathy affecting the upper thorax, arm, and shoulder region, cervical plexopathy affecting the neck and head, and lumbosacral plexopathy affecting the lower back and legs
electromyographic examination and nerve conduction studies are often the most accurate means to localize and determine the exact nature and site of the plexopathy.
Cervical plexopathy may be caused by trauma or by head and neck tumors. Brachial plexopathy is commonly related to breast cancer, lung cancer, lymphoma, or metastatic tumor
Tumors in the pelvis and abdomen may result in plexopathies and pain in the lumar, sacral (lumbosacral) plexi with pain experienced in the abdomen and upper regions of the leg
I recently had a burning feeling on the back of my right hand too, but directly after I noticed a golf ball sized purple lump appear which scared me. It appeared I had burst a vein in my hand. ( there are many diff. kinds and sizes of blood vessels that can break) It happened again 2 weeks later but this time on my arm. This time I went to the ER. My blood pressure was 170 over 120....way to high. I am seeing a couple specialists about it this week. For me, the burning sensation was my veins bursting I guess. I would advise you to be aware of anything like I mentioned, and get it checked out. Good luck!