Síndrome de atrapamiento del nervio supraescapular como causa infrecuente de hombro doloroso

One of the most frequent diseases in our consultations is Shoulder Pain Syndrome. Different factors may cause it. The disease diagnosed most in this setting is rotator cuff tendonitis. Normally, differential diagnosis is made between brachial biceps tendonitis, supraspinatus tears, unstable shoulder, acroniohumeral friction syndrome, cervical slipped disc and other traumatic and/or degenerative injuries. Nevertheless, it is important to know that other very much less frequent causes exist and that they should not be overlooked when initiating the evaluation of these patients. We report the rare case of a 37 year old man, with progressive functional limitation to abduction of upper right limb, treated with NSAIDs and physical therapy without clinical improvement who subsequently began with neuropathic type intense pain at the beginning of walking. When the magnetic resonance imaging (MRI) was performed, a ganglion cyst around the spinoglenoic notch was discovered. Thus, an electromyography was requested. This showed infraspinatus muscle denervation secondary to suprascapular nerve entrapment.