ARACHNOIDITIS
\ɐɹˌaknɔ͡ɪdˈa͡ɪtɪs], \ɐɹˌaknɔɪdˈaɪtɪs], \ɐ_ɹ_ˌa_k_n_ɔɪ_d_ˈaɪ_t_ɪ_s]\
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Acute or chronic inflammation of the arachnoid membrane of the meninges most often involving the spinal cord or base of the brain. This term generally refers to a persistent inflammatory process characterized by thickening of the ARACHNOID membrane and dural adhesions. Associated conditions include prior surgery, infections, trauma, SUBARACHNOID HEMORRHAGE, and chemical irritation. Clinical features vary with the site of inflammation, but include cranial neuropathies, radiculopathies, and myelopathies. (From Joynt, Clinical Neurology, 1997, Ch48, p25)
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