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Sacrococcygeal chordoma: MR imaging in 30 patients

Authors
 Mi Sook Sung  ;  Gyung Kyu Lee  ;  Heung Sik Kang  ;  Soon Tae Kwon  ;  Jin Gyoon Park  ;  Jin Suk Suh  ;  Gil Ho Cho  ;  Sung Moon Lee  ;  Myung Hee Chung  ;  Donald Resnick 
Citation
 SKELETAL RADIOLOGY, Vol.34(2) : 87-94, 2005 
Journal Title
 SKELETAL RADIOLOGY 
ISSN
 0364-2348 
Issue Date
2005
MeSH
Adult ; Aged ; Aged, 80 and over ; Chordoma/diagnosis* ; Coccyx/diagnostic imaging ; Coccyx/pathology ; Female ; Gadolinium ; Humans ; Magnetic Resonance Imaging ; Male ; Middle Aged ; Muscle Neoplasms/diagnosis ; Neoplasm Recurrence, Local/diagnosis ; Radiopharmaceuticals/therapeutic use ; Sacrococcygeal Region/diagnostic imaging ; Sacrococcygeal Region/pathology ; Sacroiliac Joint/diagnostic imaging ; Sacroiliac Joint/pathology ; Sacrum/diagnostic imaging ; Sacrum/pathology ; Spinal Neoplasms/diagnosis* ; Tomography, X-Ray Computed
Keywords
Chordoma ; Sacrococcygeal ; MR imaging ; Recurrent tumor ; Metastasis
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.
Full Text
http://link.springer.com/article/10.1007%2Fs00256-004-0840-4
DOI
10.1007/s00256-004-0840-4
Appears in Collections:
1. College of Medicine (의과대학) > Dept. of Radiology (영상의학교실) > 1. Journal Papers
Yonsei Authors
Suh, Jin Suck(서진석) ORCID logo https://orcid.org/0000-0001-9455-9240
URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/151054
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