Imaging Findings of Retroperitoneal Ganglioneuroma
Journal of the Korean Radiological Society
;
: 305-309, 2003.
Article
in English
| WPRIM
| ID: wpr-206888
ABSTRACT
PURPOSE:
To characterize the typical radiologic appearance of ganglioneuromas of the adrenal gland and extra-adrenal retroperitoneum. MATERIALS ANDMETHODS:
The findings of diagnostic imaging studies (CT, n=5; ultrasound, n=1) involving six patients aged 19-58 years with pathologically proven ganglioneuroma were retrospectively analyzed by three radiologist in terms of the lesions' size, shape, margin, location, CT attenuation (unenhanced/contrast-enhanced), necrosis, calcification, relationship with adjacent vessels, and US echogenicity.RESULTS:
The maximum diameter of the six tumors ranged from 10 to 14 (mean, 11.3) cm, and the margin was well-defined in all cases. The homogeneous or slightly heterogeneous attenuation demonstrated at unenhanced CT was less than that of muscle. Dense nodular calcification was present in one case. At contrast-enhanced CT, enhancement was poor (n=5), mild and septum-like, or delayed, heterogeneous and focal (n=3), or involved subtle foci (n=1). In no case was there evidence of necrosis or hemorrhage. Local invasion was absent, but adjacent vascular encasement (n=2) or displacement (n=2) occurred. Ultrasonic examination demonstrated low echogenicity and mild heterogeneity (n=1).CONCLUSION:
A ganglioneuroma is an uncommon benign neural crest tumor which should be included in the differential diagnosis of a retroperitoneal mass which presents as a well-defined tumor, tend to encase or displace adjacent major blood vessels, and shows low attenuation at unenhanced CT and poor or septum-like focal enhancement at contrast-enhanced CT.
Full text:
Available
Index:
WPRIM (Western Pacific)
Main subject:
Ultrasonics
/
Population Characteristics
/
Blood Vessels
/
Diagnostic Imaging
/
Tomography, X-Ray Computed
/
Retrospective Studies
/
Ultrasonography
/
Adrenal Glands
/
Diagnosis, Differential
/
Ganglioneuroma
Type of study:
Diagnostic study
/
Observational study
Limits:
Humans
Language:
English
Journal:
Journal of the Korean Radiological Society
Year:
2003
Type:
Article
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