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Sacrococcygeal chordoma: MR imaging in 30 patients

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Author(s)
Mi Sook SungGyung Kyu LeeHeung Sik KangSoon Tae KwonJin Gyoon ParkJin Suk SuhGil Ho ChoSung Moon LeeMyung Hee ChungDonald Resnick
Keimyung Author(s)
Lee, Sung Mun
Department
Dept. of Radiology (영상의학)
Journal Title
Skeletal Radiology
Issued Date
2005
Volume
34
Issue
2
Keyword
SacrococcygealMR imagingRecurrent tumorMetastasis
Abstract
Objective: To evaluate MR imaging of sacrococcygeal chordoma.
Design and patients: Thirty patients (age range 22–80 years) underwent MR imaging for the diagnosis and preoperative evaluation of sacrococcygeal chordomas. Eight patients had follow-up MR examination after treatment. The MR images were performed with T1- and T2- weighted imaging, and gadolinium (Gd)-enhanced imaging. The MR images were analyzed for the signal intensity, enhancing pattern, tumor size, growth pattern of the soft tissue component, and tumor extension.
Results and conclusions: T1-weighted images showed low signal masses with foci of high signal intensity in 73% of cases. Tumors enhanced in a variety of patterns after the administration of Gd. Soft tissue masses extending anteriorly were seen in all cases with posterior extension in 77% of cases. The posterior masses involved the surrounding muscles and extended toward the greater sciatic notch, appearing with pseudopodia (87%). Sacroiliac joints were involved in 23% of cases. Four lesions showed intraspinal extension and involvement of the posterior spinal muscles above the level of bony involvement. In 6 patients recurrent tumors were found at or around the surgical margin of the tumor 6 months to 5 years after resection of the sacral tumor. In two of the patients, nodular metastases to the pelvic bones and femur were found 1–4 years after initial examination. In conclusion, MR imaging is useful in the diagnosis and preoperative assessment of sacrococcygeal chordoma. Characteristic findings included sacral mass with heterogeneously high signal intensity with crisscrossing septa on long-repetition-time imaging, well-encapsulated pseudopodia- like or lobulated appearance, and gluteal muscle infiltration. Follow-up MR imaging is helpful to assess for recurrent or metastatic lesions of chordomas.
Keimyung Author(s)(Kor)
이성문
Publisher
School of Medicine
Citation
Mi Sook Sung et al. (2005). Sacrococcygeal chordoma: MR imaging in 30 patients. Skeletal Radiology, 34(2), 87–94. doi: 10.1007/s00256-004-0840-4
Type
Article
ISSN
0364-2348
Source
http://lps3.link.springer.com.proxy.dsmc.or.kr/article/10.1007%2Fs00256-004-0840-4
DOI
10.1007/s00256-004-0840-4
URI
https://kumel.medlib.dsmc.or.kr/handle/2015.oak/34394
Appears in Collections:
1. School of Medicine (의과대학) > Dept. of Radiology (영상의학)
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