MRI Features of Spinal Epidural Angiolipomas
Korean Journal of Radiology
; : 810-817, 2013.
Article
in English
| WPRIM (Western Pacific)
| ID: wpr-209690
Responsible library:
WPRO
ABSTRACT
OBJECTIVE:
To describe the MRI findings in ten patients of spinal epidural angiolipoma for differentiated diagnosis presurgery. MATERIALS ANDMETHODS:
Ten surgically proved cases of spinal epidural angiolipomas were retrospectively reviewed, and the lesion was classified according to the MR findings.RESULTS:
Ten tumors were located in the superior (n = 4), middle (n = 2), or inferior (n = 4) thoracic level. The mass, with the spindle shape, was located in the posterior epidural space and extended parallel to the long axis of the spine. All lesions contained a fat and vascular element. The vascular content, correlating with the presence of hypointense regions on T1-weighted imaging (T1WI) and hyperintense signals on T2-weighted imaging, had marked enhancement. However, there were no flow void signs on MR images. All tumors were divided into two types based on the MR features. In type 1 (n = 3), the mass was predominantly composed of lipomatous tissue (> 50%) and contained only a few small angiomatous regions, which had a trabeculated or mottled appear. In type 2 (n = 7), the mass, however, was predominantly composed of vascular components (> 50%), which presented as large foci in the center of the mass.CONCLUSION:
Most spinal epidural angiolipomas exhibit hyperintensity on T1WI while the hypointense region on the noncontrast T1WI indicates to be vascular, which manifests an obvious enhancement with gadolinium administration.
Full text:
Available
Database:
WPRIM (Western Pacific)
Main subject:
Thoracic Vertebrae
/
Magnetic Resonance Imaging
/
Epidural Neoplasms
/
Retrospective Studies
/
Follow-Up Studies
/
Angiolipoma
/
Diagnosis, Differential
/
Laminectomy
Type of study:
Diagnostic study
/
Observational study
/
Prognostic study
Limits:
Adult
/
Aged
/
Female
/
Humans
/
Male
Language:
English
Journal:
Korean Journal of Radiology
Year:
2013
Document type:
Article