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• CLINICA NEUROL, 61: 1−5, 2021
• Vol.61 No.1 contents

Invited Review

Definitions and MR imaging of duropathies

Akira Yagishita, M.D.¹⁾

¹⁾ Department of Neuroradiology, Tokyo Metropolitan Neurological Hospital

Kumar defined duropathies as disorders with dural defects-related cerebrospinal fluid leaks, particularly of spinal anterior dura mater, Superficial (hemo) siderosis (SS) and multisegemental amyotrophy (MSAM) were included in duropathies. Dural defects of SS had two types; one was incomplete closure of the dura in the spinal and cranial operations, the other was a spontaneous defect in the spinal anterior dura mater. In a majority of SS patients, spontaneous dural defects were detected at the levels of C7/Th1 to Th2/Th3 on axial FIESTA (fast imaging employing steady state acquisition) images. Similarly, dural defects in our 6 cases with MSAM were showed at C7/Th1 to Th2/Th3. Axial FIESTA images were crucial on MR imaging. T₂ weighted images demonstrated abnormal hyperintense lesions in both anterior horns at the level of C3 spinal cord in all of 7 patients with MSAM. A dural defect in one case was not found.
Full Text of this Article in Japanese PDF (2810K) 　　　　 Full Text of this Article in English HTML

(CLINICA NEUROL, 61: 1−5, 2021)
key words: dura, superficial hemosiderosis, multisegmental amyotrphy, amyotrophic lateral sclerosis, FIESTA (fast imaging employing steady state acquisition)

(Received: 12-Aug-20)