plexopatía

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Plexopathy is a disorder of the network of nerves in the brachial or lumbosacral plexus. Symptoms include pain, muscle weakness, and sensory deficits (numbness). There are two main types of plexopathy, based on the location of the symptoms: brachial plexopathy (affecting the arm) and lumbosacral plexopathy (affecting the leg). Brachial plexopathy is often caused from local trauma to the brachial plexus, as can happen from a dislocated shoulder. The disorder can also be secondary to compression or stretching of the brachial plexus (for example, during a baby's transit through the birth canal, in which case it may be referred to as Erb's Palsy or Klumpke's palsy). Non-traumatic causes of brachial plexopathy include diabetes, malignancy, and infection. Brachial plexopathy can also be idiopathic with an unknown cause, in which case it is known as Parsonage-Turner Syndrome. Both brachial and lumbosacral plexopathy can also occur as a consequence of radiation therapy, sometimes after 30 or more years have passed, in conditions known as Radiation-induced Brachial Plexopathy (RIBP) and Radiation-induced Lumbosacral Plexopathy (RILP). The first steps in the evaluation and management of plexopathy involve a medical provider obtaining a medical history and conducting a physical examination. Diagnosis of plexopathy relies on proper identification of a pattern in motor and sensory function deficits in the upper or lower extremities.