Memory loss following radiotherapy for nasal pharyngeal carcinoma - An unusual presentation of amnesia

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Abstract
In this article we describe a patient who developed amnesia several years after receiving a second course of radiotherapy treatment for nasopharyngeal cancer (NPC). Detailed assessment of memory indicated a marked anterograde impairment for verbal material with less impaired non-verbal memory. A dense retrograde deficit was also present, reflected in both poor event memory and loss of general knowledge. Performance on other tests indicated a mild intellectual deficit but no other cognitive impairments. The findings indicate a striking memory disorder arising from late temporal lobe necrosis. These findings stress the importance of assessing neuropsychological sequelae when evaluating the long-term outcome of radiotherapy for NPC and other cancers of the head and neck.

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