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- W2157638088 abstract "✓ The incidence and natural history of the cavernous angioma have remained unclear in part because of the difficulty of diagnosing and following this lesion prior to surgical excision. The introduction of magnetic resonance (MR) imaging has improved the sensitivity and specificity of diagnosing and following this vascular malformation. Seventy-six lesions with an MR appearance typical of a presumed cavernous angioma were discovered in 66 patients among 14,035 consecutive MR images performed at the Cleveland Clinic between 1984 and 1989. Follow-up studies in 86% of the cases over a mean period of 26 months provided 143 lesion-years of clinical survey of this condition. The most frequent presenting features were seizure, focal neurological deficit, and headache. While most lesions exhibited evidence of occult bleeding on MR imaging, there was overt hemorrhage in seven of the 57 symptomatic patients and only one overt hemorrhage occurred during the follow-up interval. The annualized bleeding rate was 0.7%. Analysis of the hemorrhage group revealed a significantly greater risk of overt hemorrhage in females. Pathological confirmation of cavernous angioma was obtained in all 14 surgical cases. This information assists in rational therapeutic planning and prognosis in patients with MR images showing lesions suggestive of cavernous angioma." @default.
- W2157638088 created "2016-06-24" @default.
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- W2157638088 date "1991-11-01" @default.
- W2157638088 modified "2023-10-12" @default.
- W2157638088 title "Natural history of the cavernous angioma" @default.
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- W2157638088 doi "https://doi.org/10.3171/jns.1991.75.5.0709" @default.
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