1/2. Neuropsychological manifestations in a case of bilateral thalamic infarction.Neuropsychological manifestation has been reported with lesions of the anterior and non-specific thalamic nuclei and mammilothalamic tract (MMT). These have been reported in the setting of arterial infarction and/or haemorrhage. Cerebral venous sinus thrombosis (CVT) is a rare cause of brain infarction. It occurs in the setting of oral contraceptive administration or pregnancy. Inherited thrombophilias are documented risk factors. The most frequent being heterozygous factor v Leiden mutation. We report a single case of bilateral thalamic infarction due to cerebral vein and sinus thrombosis. Clinically the case manifested with memory impairment and dysexecutive symptoms. Predisposing factor for venous thrombosis was a homozygous factor v Leiden mutation. The patient was treated with anticoagulation and made a good recovery.- - - - - - - - - - ranking = 1keywords = administration (Clic here for more details about this article) |
2/2. Cerebellar infarction in adolescent males associated with acute marijuana use.OBJECTIVE: To demonstrate the clinical characteristics, radiologic findings, and neuropathological features of tetrahydrocannabinol-related posterior fossa ischemic stroke in adolescent patients. DESIGN: A retrospective case and chart review of 3 cases encountered at a tertiary care institution over a span of 5 years. SETTING: Inpatient and intensive care hospitalization units managing children and adolescents. SUBJECTS: male adolescent patients with ischemic cerebellar stroke after use of marijuana. DIAGNOSTIC INVESTIGATIONS: Computed tomography brain scans (3 subjects), magnetic resonance imaging brain study (1 subject), cerebral arteriography (1 subject), cerebellar biopsy (1 subject), and necropsy (2 subjects). RESULTS: Three adolescent males had similar presentations of headache, fluctuating level of consciousness or lethargy, visual disturbance, and variable ataxia after self-administration of marijuana. They developed primary cerebellar infarctions within days after the exposure that could not be attributed to supratentorial herniation syndromes and only minimally involved brainstem structures. CONCLUSIONS: Episodic marijuana use may represent a risk factor for stroke in childhood, particularly in the posterior circulation. Early recognition of the cerebellar stroke syndrome may allow prompt neurosurgical intervention, reducing morbidity.- - - - - - - - - - ranking = 1keywords = administration (Clic here for more details about this article) |