| obliterative arachnoiditis | Thickening of the leptomeninges, sometimes with obliteration of the subarachnoid space; commonly related to acute or chronic leptomeningitis of bacterial or chemical origin. See: leptomeningeal fibrosis. Synonym: obliterative arachnoiditis. (05 Mar 2000) |
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| endoarteritis | <pathology> Chronic inflammation of the arterial intima, often a late result of syphilis (18 Nov 1997) |