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• Clinical Article •
Imaging feature of intraspinal primary Rosai-Dorfman disease on magnetic resonance imaging: a report of four cases
HAN Zhuang  MA Jun  XIAO Fu-long  FENG Qi-xing 

DOI:10.3969/j.issn.1674-8034.2015.01.009.


[Abstract] Objective: Investigating the features of intraspinal primary Rosai-Dorfman disease in MRI.Materials and Methods: The MRI features of four cases which were confirmed Rosai-Dorfman disease histologically were retrospectively evaluated and the literatures about intraspinal primary Rosai-Dorfman disease were reviewed.Results: Four cases were taken MRI examination in spine: two cases showed abnormal signals in cervical spinal canal, one case in thoracic spinal canal and one case in sacral spinal canal. All cases showed mass effect located in subdural-extramedullary spine on MRI, closely associated with spinal dura mater. All of the four cases showed iso-intensity on T1WI and T2WI. Three cases were significantly enhanced and one case was slightly enhanced after injection of contrast medium. The intensity of enhancement in abnormal mass was less in comparison with that of spinal dura mater. The mass was diffusely located in cervical spinal canal in one case.Conclusions: The possibility of intraspinal primary Rosai-Dorfman disease should be considered for differentiation in case of single or diffuse mass closely associated with spinal dure mater on MRI. Magnetic Resonance Spectroscopy may be helpful in diagnosis.
[Keywords] Histiocytosis, sinus；Spinal canal；Magnetic resonance imaging

HAN Zhuang Department of Radiology, The First Hospital of Shijiazhuang, Shijiazhuang 050021, China

MA Jun* Department of Radiology, Beijing Tiantan Hospital of Capital Medical University, Beijing 100050, China

XIAO Fu-long Department of Radiology, Beijing Tiantan Hospital of Capital Medical University, Beijing 100050, China

FENG Qi-xing Department of Radiology, Beijing Tiantan Hospital of Capital Medical University, Beijing 100050, China

*Correspondence to: Ma J, E-mail: dr_ma@sina.com

Conflicts of interest   None.

Received  2014-09-25
Accepted  2014-11-10
DOI: 10.3969/j.issn.1674-8034.2015.01.009
DOI:10.3969/j.issn.1674-8034.2015.01.009.

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