Morphological evaluation of median nerve: why ultrasound?

We have read with high consideration the paper “Ultrasonography of a bifid median nerve causing carpal tunnel syndrome: MSUS or MRI, which is better?”, by Negm and colleagues [1]. The authors presented a very interesting case report about the usefulness of ultrasound (US) for nerve evaluation. They showed the morphological findings of median nerve, in a subject presenting bilateral severe carpal tunnel syndrome, neurophysiologically confirmed. The patient was evaluated by US and magnetic resonance (MR). Performing US, the authors found increased dimension in both median nerves at wrist, that represents one of the typical signs of nerve suffering [2]. Furthermore, at the left side, they depicted the anatomical variation of bifid median nerve. MR confirmed those findings but its resolution was inferior in comparison with US [1]. The paper is extremely useful in clinical practice for different medicine fields, in particular for rheumatology, radiology, neurology, surgery and rehabilitation