Abstract
Wegener granulomatosis (WG) is a rare multisystem inflammatory disorder characterized by necrotizing granulomas in the respiratory tract with or without focal necrotizing glomerulonephritis and a systemic vasculitis. Meningeal involvement, which may be diffuse or focal, is rarely represented in 4%
Highlights
Meningeal involvement, which usually presents with diffuse or focal forms of dural thickening and enhancement, was previously reported in a small number (Ͻ 100) of cases in the literature.[2]
In the case of our patient, the meningeal lesions were located at the posterior wall of the fourth ventricle and the adjacent parenchyma
It is predicated that these lesions did not derive from the dura, which is known to be the first affected meningeal layer throughout the contiguous invasion process
Summary
A 33-year-old woman who was diagnosed earlier with WG and was undergoing treatment for approximately 2 months began to experience some neurologic symptoms. Contrast-enhanced MR imaging scans revealed 2 nodular enhancing extra-axial lesions on the posterior wall of the fourth ventricle, which appeared to be slightly dilated. The diameter of the largest lesion was 13 mm; in addition, there was linear meningeal enhancement close to the lesions (Fig. 1).
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