Magnetic resonance imaging of cerebral cavernous angiomas.
Magnetic resonance imaging (MRI) proved to be far superior to computed tomography and angiography in detecting cavernous angiomas in 55 patients, with a total of 72 lesions. A cavernous angioma usually appears as a nodular lesion with a relatively short T1 and long T2, circumscribed by a hypointense ring. The MR signal varies according to histopathologic components. Usually, no significant mass effect is detected. Sometimes a rim of edema or gliosis is present (long T2). When a massive bleeding is present, differential diagnosis from chronic hematoma of other origin is not always easy, but may be possible from the clinical presentation and some MR findings.
Biondi
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Servizio de Neuroradiologia, Ospedale Niguarda, Università di Milano, Italy.
Scotti
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Scialfa
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Landoni
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L
D000293:Adolescent; D000328:Adult; D001932:Brain Neoplasms / Q000175:diagnosis* / Q000000981:diagnostic imaging; D002648:Child; D005260:Female; D006392:Hemangioma, Cavernous / Q000175:diagnosis* / Q000000981:diagnostic imaging; D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D008875:Middle Aged; D014057:Tomography, X-Ray Computed