J Korean Radiol Soc.  2003 Mar;48(3):279-284. 10.3348/jkrs.2003.48.3.279.

MR Findings of Chondroblastoma with Emphasis on Enhancement Pattern

• Oh KJ
• Go SH
• Lee GK
• Kim JE
• Choi JA
• Park CM
• Choi SH
• Ahn JM
• Kim SM
• Kang HS

• KMID: 2200060
• DOI: http://doi.org/10.3348/jkrs.2003.48.3.279

Abstract

PURPOSE: To analyze the MR findings of chondroblastoma and peritumoral bone marrow, focussing on the enhancement pattern.
MATERIALS AND METHODS
Enhanced MR images obtained from 23 patients with pathologically proven chondroblastoma were retrospectively reviewed by three radiologists. The enhancement pattern was classified as one of three types: homogeneous, heterogeneous, or peripheral rim, while peritumoral bone marrow enhancement was assigned one of four grades. Correlation between the enhancement pattern and T2 signal intensity of a tumor was analyzed by Fisher's exact test.
RESULTS
The enhancement pattern was homogeneous in ten cases, heterogeneous in six, and involved the peripheral rim in seven. In 11 cases, peritumoral bone marrow enhancement was observed. Among the ten instances of homogeneous enhancement the signal intensity seen at T2WI was homogeneously iso or low in six cases, homogeneously high in two, and heterogeneous in two. Among the seven cases in which there was peripheral rim enhancement, the signal intensity observed at T2WI was homogeneously high in three, fluid-fluid level in three, and homogeneously iso or low in one.
CONCLUSION
At MR imaging, chondroblastoma shows variable signal intensities and enhancement patterns. The peripheral rim enhancement observed at T2WI correlated with homogeneously high signal intensity or fluid-fluid levels.

Keyword

Chondroblastoma; Magnetic resonance (MR); Images, enhancement

MeSH Terms

Bone Marrow
Chondroblastoma*
Humans
Magnetic Resonance Imaging
Retrospective Studies