Sonography of the Median Nerve in Charcot-Marie-Tooth Disease
Carlo Martinoli1,
Angelo Schenone2,
Stefano Bianchi3,
Paola Mandich2,
Claudia Caponetto2,
Michele Abbruzzese2 and
Lorenzo E. Derchi1
1 Cattedra di Radiologia "R," DICMI, Università di Genova,
Largo Rosanna Benzi, 8, I-16132, Genova, Italy.
2 Dipartimento di Scienze Neurologiche e della Visione, Università di
Genova, I-16132, Genova, Italy.
3 Division de Radiodiagnostic, Hôpital Cantonal Huniversitaire, Rue
Micheli du Crest, Geneve, Switzerland.

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Fig. 1. Transverse 12-5-MHz sonogram of mid forearm of healthy
45-year-old woman. Nerve fascicles (arrowhead) can be clearly
identified within median nerve (arrows) as rounded hypoechoic areas
in hyperechoic background.
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Fig. 2. Transverse 12-5-MHz sonogram of mid forearm (obtained at same
magnification as Fig. 1) of
37-year-old woman with Charcot-Marie-Tooth disease type 1A. Note hypertrophy
of median nerve (arrows) and nerve fascicles (arrowhead)
compared with those structures in healthy woman depicted in
Figure 1.
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Copyright © 2002 by the American Roentgen Ray Society.