MR Imaging of Solitary Fibrous Tumors in the Head and Neck
Korean Journal of Radiology
; : 136-142, 2005.
Article
in En
| WPRIM
| ID: wpr-181660
Responsible library:
WPRO
ABSTRACT
OBJECTIVE: Solitary fibrous tumor (SFT) is a very rare tumor. The purpose of this study is to determine the MR imaging features of SFT in the intracranial and extracranial head and neck regions. MATERIALS AND METHODS: We retrospectively reviewed six MR images and two CT images of six histologically proven cases of SFT that occurred in four men and two women, and their ages ranged from 46 to 59 years. These imaging findings were correlated with the microscopic findings of their surgical specimens. RESULTS: Six SFTs arose in the meninges (the petrous ridge and the pituitary fossa), the parotid gland, the parapharyngeal space, the buccal space and the maxillary sinus. On the MR images, SFTs in the intracranial and extracranial head and neck regions were mostly isointense to the muscle on the T1-weighted images, they were hyperintense on the T2-weighted images and they all had intense enhancement. On the T1- and T2-weighted images, hypointense lines were observed within in five SFTs. On the CT images, the SFTs were hypodense to the muscle on the unenhanced images and they were heterogeneously enhanced on the contrast-enhanced images. An exceptional case of pituitary SFT was hypointense on the T2-weighted images and it was hyperdense on the unenhanced CT images, which correlated with the increased collagenous component and the cellular compactness. CONCLUSION: The imaging features of SFT are nonspecific; however, SFT should be included in the differential diagnosis of masses involving the intracranial and extracranial head and neck regions.
Key words
Full text:
1
Index:
WPRIM
Main subject:
Soft Tissue Neoplasms
/
Magnetic Resonance Imaging
/
Tomography, X-Ray Computed
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Retrospective Studies
/
Head and Neck Neoplasms
Type of study:
Observational_studies
Limits:
Adult
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Female
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Humans
/
Male
Language:
En
Journal:
Korean Journal of Radiology
Year:
2005
Type:
Article