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1.
Cogn Behav Neurol ; 31(4): 207-213, 2018 12.
Article in English | MEDLINE | ID: mdl-30562230

ABSTRACT

Intracranial epidermoid cysts are rare, comprising 0.2% to 1.8% of all primary intracranial expanding lesions, of which <5% occur within the fourth ventricle. Epidermoid cysts are frequently congenital, and patients often present in the fourth decade of life. These cysts produce symptoms as a result of mass effect on surrounding structures, most commonly the cerebellum and cranial nerves. Symptoms can include hearing impairment, trigeminal neuralgia (severe facial pain), facial tics, headaches, double vision, and facial palsy. However, no research has focused on the neuropsychological effects on a patient after surgical resection of these cysts. This case report presents the cognitive profile of a woman after resection of an epidermoid cyst in the fourth ventricle. The 49-year-old patient underwent neuropsychological assessment after removal of the cyst, completing a comprehensive set of cognitive tests of estimated premorbid intelligence, attention, memory, social cognition, language, visual perception, and executive functioning. Test results indicated executive dysfunction and reduced visuospatial memory in the acute stage after surgical removal of the epidermoid cyst. These findings suggest that cognitive deficits can occur after resection of space-occupying lesions in brain regions not typically associated with cognition. To our knowledge, this is the first report of the neuropsychological consequences of surgical removal of a congenital epidermoid cyst in the fourth ventricle. An understanding of the neuropsychological sequelae of this rare cerebral cyst will allow patients, families, and health professionals to better anticipate and manage postoperative difficulties.


Subject(s)
Brain Diseases/complications , Fourth Ventricle/abnormalities , Brain Diseases/pathology , Epidermal Cyst/pathology , Epidermal Cyst/surgery , Female , Humans , Middle Aged
2.
Brain Sci ; 7(10)2017 Sep 24.
Article in English | MEDLINE | ID: mdl-28946652

ABSTRACT

Changes in cognition, behaviour and emotion frequently occur in patients with primary and secondary brain tumours. This impacts the ability to make considered decisions, especially following surgical resection, which is often overlooked in the management of patients. Moreover, the impact of cognitive deficits on decision making ability affects activities of daily living and functional independence. The assessment process to ascertain decision making capacity remains a matter of debate. One avenue for evaluating a patient's ability to make informed decisions in the context of brain tumour resection is neuropsychological assessment. This involves the assessment of a wide range of cognitive abilities on standard measurement tools, providing a robust approach to ascertaining capacity. Evidence has shown that a comprehensive and tailored neuropsychological assessment has greater sensitivity than brief cognitive screening tools to detect subtle and/or specific cognitive deficits in brain tumours. It is the precise nature and severity of any cognitive deficits that determines any implications for decision making capacity. This paper focuses on cognitive deficits and decision making capacity following surgical resection of both benign and malignant, and primary and secondary brain tumours in adult patients, and the implications for patients' ability to consent to future medical treatment and make decisions related to everyday activities.

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