MR Findings of Chondroblastoma with Emphasis on Enhancement Pattern.
10.3348/jkrs.2003.48.3.279
- Author:
Kyung Joong OH
1
;
Sung Hye GO
;
Gyung kyu LEE
;
Jung Eun KIM
;
Jung A CHOI
;
Chang Min PARK
;
Seung Hong CHOI
;
Jung Mo AHN
;
Sung Moon KIM
;
Heung Sik KANG
Author Information
1. Department of Radiology, Seoul National University College of Medicine, and the Institute of Radiation Medicine, SNUMRC. kanghs@radcom.snu.ac.kr
- Publication Type:Original Article
- Keywords:
Chondroblastoma;
Magnetic resonance (MR);
Images, enhancement
- MeSH:
Bone Marrow;
Chondroblastoma*;
Humans;
Magnetic Resonance Imaging;
Retrospective Studies
- From:Journal of the Korean Radiological Society
2003;48(3):279-284
- CountryRepublic of Korea
- Language:Korean
-
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.
