MRI of chondromyxoid fibroma

Title
MRI of chondromyxoid fibroma
Author(s)
조길호김현수[김현수]지원희[지원희]류경남[류경남]서진석[서진석]조재현[조재현]최윤선[최윤선]이성문[이성문]이종민[이종민]성미숙[성미숙]김지영[김지영]정은선[정은선]정양국[정양국]옥인영[옥인영]
Keywords
RADIOLOGIC-PATHOLOGICAL CORRELATION; GIANT-CELL TUMOR; BONE; CHONDROSARCOMA
Issue Date
201110
Publisher
ROYAL SOC MEDICINE PRESS LTD
Citation
ACTA RADIOLOGICA, v.52, no.8, pp.875 - 880
Abstract
Background: Chondromyxoid fibroma is a rare benign primary bone tumor of cartilage. Despite a characteristic radiographic appearance, chondromyxoid fibroma with atypical radiographic findings may mimic more common tumors. Purpose: To describe the MR findings of chondromyxoid fibroma. Material and Methods: MR images of 19 histopathologically confirmed chondromyxoid fibromas were retrospectively analyzed for signal intensity, periosteal reaction, adjacent abnormal bone marrow and soft tissue signal, and patterns of contrast enhancement. Results: All cases of chondromyxoid fibroma showed hypointense to intermediate signal intensity and internal hyperintense foci were observed in seven (37%) cases on T1-weighted images. On T2-weighted images, all lesions were hyperintense: peripheral intermediate signal band with central hyperintense signal in 11(58%) of 19 lesions, whereas diffusely hyperintense with heterogeneous pattern in eight (42%). Periosteal reaction was observed in 11 (58%) of 19 cases. Adjacent abnormal bone marrow or soft tissue signal was observed in 12 (63%) or 14 (74%) of 19 cases, respectively. On contrast-enhanced T1-weighted images, peripheral nodular enhancement was observed in 69% (11/16) and diffuse contrast enhancement was observed in 31% (5/16) with homogeneous (n = 3) or heterogeneous (n = 2) patterns. Among the cases with peripheral nodular enhancement, the peripheral nodular enhancing portion generally corresponded to the peripheral intermediate signal band on T2-weighted images, although the peripheral enhancement was not as wide as a band of intermediate signal intensity. On the other hand, the central non-enhancing portion generally corresponded to the central hyperintense signal intensity on T2-weighted images. Conclusion: The helpful features of chondromyxoid fibroma are the peripheral intermediate signal band and central hyperintense signal on T2-weighted images, generally corresponding to the peripheral nodular enhancement and central non-enhancing portion on contrast-enhanced T1-weighted images, respectively.
URI
http://hdl.handle.net/YU.REPOSITORY/24426http://dx.doi.org/10.1258/ar.2011.110180
ISSN
0284-1851
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의과대학 > 영상의학과학교실 > Articles
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