Useful MRI Features for Distinguishing Benign Peripheral Nerve Sheath Tumors and Myxoid Tumors in the Musculoskeletal System
Investigative Magnetic Resonance Imaging
;
: 153-161, 2015.
Article
in English
| WPRIM
| ID: wpr-90704
ABSTRACT
PURPOSE:
To identify the differential MRI findings between myxoid tumors and benign peripheral nerve sheath tumors (BPNSTs) in the musculoskeletal system. MATERIALS ANDMETHODS:
The study participants included a total of 35 consecutive patients who underwent MRI between September 2011 and December 2013. The patients were pathologically diagnosed with myxoid tumors (22 patients) or BPNSTs (13 patients). Evaluation was done by two radiologists, based on the following characteristics size, margin, degree of signal intensity (SI) on T2-weighted images (T2WI), homogeneity of SI on T2WI, enhancement pattern, enhancement homogeneity, presence of cystic portion, internal fat component, presence of fat split sign, presence of target sign, presence of continuation with adjacent neurovascular bundle, and presence of surrounding halo.RESULTS:
Large size, high SI on T2WI, heterogeneous enhancement, and internal fat component were commonly observed in myxoid tumors, while homogenous enhancement, fat split sign, target sign were common in BPNSTs. The differences were statistically significant (P 0.05).CONCLUSION:
In the differential diagnosis of myxoid tumors and BPNSTs involving the musculoskeletal system, several MRI findings such as degree of SI on T2WI, enhancement homogeneity, internal fat component, fat split sign, and target sign, may be helpful in establishing the diagnosis.
Full text:
Available
Index:
WPRIM (Western Pacific)
Main subject:
Peripheral Nerves
/
Magnetic Resonance Imaging
/
Nerve Sheath Neoplasms
/
Diagnosis
/
Diagnosis, Differential
/
Musculoskeletal System
Type of study:
Diagnostic study
/
Prognostic study
Limits:
Humans
Language:
English
Journal:
Investigative Magnetic Resonance Imaging
Year:
2015
Type:
Article
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