A Case of Angiographically Occult Micro AVM Showed a Clinical Picture as Chronic Intracerebral Hematoma

Abstract

We report a case of angiographically occult micro arteriovenous malformations (AVMs) presenting a clinical picture as chronic intracerebral hematoma in the case of a 31-year-old woman. She suffered from gradually worsening headache and nausea for a week. Brain magnetic resonance imaging (MRI) performed at the outpatient department (O.P.D.) revealed the presence of a cystic mass lesion (diameter, 6 cm) with niveau at the left caudate head. After the patient was admitted to our hospital, the cystic mass gradually increased in size and her conscious level and right hemiparesis deteriorated. MRI with gadolinium enhancement showed no abnormal enhancement