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• Clinical Article •
MR imaging findings and differential MRI diagnosis of hypertropic pachymeningitis
YANG Shu-hui  YANG Jia-fei  XING Xin-bo  HU Li-li  SHANG Liu-tong  WANG Xin-kun  HU Ming-yan  ZHI Man  NIE Ming-ming 

DOI:10.12015/issn.1674-8034.2016.11.006.


[Abstract] Objective: To investigate MR imaging findings of hypertropic pachymeningitis (HP) and improve the diagnostic accuracy of HP.Materials and Methods: We retrospectively analyzed MRI data of 7 patients with HP confirmed by clinic and pathology between July 2013 to June 2016 in our hospital. The characteristics of MRI were summarized.Results: In 7 cases of HP, 2 cases involved spinal dura matter, and 5 cases involved multiple cerebral dura matter. All 7 cases showed dural thickening. 6 cases showed isointense on T1WI and hypointense on T2WI, 2 cases of them showed hyperintense in the edge on T2WI. Only 1 case showed hypo-intensity signal on T1WI and hyperintense on T2WI. The thickening dura matter of 7 cases showed obvious enhancement. Three cases involved cerebral parenchyma or spinal cord, and abnormal enhancement of pia matter could be found.Conclusions: HP is characterized by extensive and uneven thickening of dura matter, which shows hypointense on T2WI and obvious enhancement, and may accompany with involvement of pia matter, cerebral parenchyma or spinal cord.
[Keywords] Dura mater；Meningitis；Magnetic resonance imaging

YANG Shu-hui MR Department of the First Affliliated Hospital of PLA General Hospital, Beijing 100048, China

YANG Jia-fei* MR Department of the First Affliliated Hospital of PLA General Hospital, Beijing 100048, China

XING Xin-bo MR Department of the First Affliliated Hospital of PLA General Hospital, Beijing 100048, China

HU Li-li MR Department of the First Affliliated Hospital of PLA General Hospital, Beijing 100048, China

SHANG Liu-tong MR Department of the First Affliliated Hospital of PLA General Hospital, Beijing 100048, China

WANG Xin-kun MR Department of the First Affliliated Hospital of PLA General Hospital, Beijing 100048, China

HU Ming-yan MR Department of the First Affliliated Hospital of PLA General Hospital, Beijing 100048, China

ZHI Man MR Department of the First Affliliated Hospital of PLA General Hospital, Beijing 100048, China

NIE Ming-ming MR Department of the First Affliliated Hospital of PLA General Hospital, Beijing 100048, China

*Correspondence to: Yang JF, E-mail: yjf01@sina.com

Conflicts of interest   None.

Received  2016-08-02
Accepted  2016-10-10
DOI: 10.12015/issn.1674-8034.2016.11.006
DOI:10.12015/issn.1674-8034.2016.11.006.

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