MRI of chondromyxoid fibroma

Hyun Soo Kim, Won Hee Jee, Kyung Nam Ryu, Kil Ho Cho, Jin Suck Suh, Jae Hyun Cho, Yun Sun Choi, Sung Moon Lee, Jong Min Lee, Mi Sook Sung, Jee Young Kim, Eun Sun Jung, Yang Guk Chung, In Young Ok

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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.

Original languageEnglish
Pages (from-to)875-880
Number of pages6
JournalActa Radiologica
Volume52
Issue number8
DOIs
Publication statusPublished - 2011 Oct 1

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All Science Journal Classification (ASJC) codes

  • Radiological and Ultrasound Technology
  • Radiology Nuclear Medicine and imaging

Cite this

Kim, H. S., Jee, W. H., Ryu, K. N., Cho, K. H., Suh, J. S., Cho, J. H., Choi, Y. S., Lee, S. M., Lee, J. M., Sung, M. S., Kim, J. Y., Jung, E. S., Chung, Y. G., & Ok, I. Y. (2011). MRI of chondromyxoid fibroma. Acta Radiologica, 52(8), 875-880. https://doi.org/10.1258/ar.2011.110180