Keywords:
Trauma, Education, Ultrasound, Neuroradiology peripheral nerve, Musculoskeletal system
Authors:
N. Romano, A. Fischetti, I. Mussetto, A. Muda; Genoa/IT
DOI:
10.1594/essr2017/P-0232
Imaging findings OR Procedure Details
Normal nerves are linear,
fascicular, hyperechoic structures,
and imaging of peripheral nerves is dependent on the echogenicity of surrounding tissues; the echogenicity of the peripheral nerves is between the relatively low echogenicity of muscle and the higher echogenicity of tendon.
The typical appearance of neuromas with HRUS is that of an ovoid,
well defined, incompressible, hypoechoic region of focal swelling in continuity distally and proximally with a normal nerve.
Pressure from the transducer applied on this region can reproduce the patient’s pain and can lead to the neuroma.
We present our experience with neuromas of the fingers,
in which HRUS was used to establish the diagnosis.
All patients underwent a sonographic examination using a MyLabTwice (Esaote Biomedica,
Genoa,
Italy) equipped with a high frequency transducer of 22mHz.
The digital nerve involved were scanned with the patient seated with the hand in a neutral position over the table and the ultrasound transducer placed over the finger in order to obtain axial and longitudinal scans.