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Arch Neurol. 2005;62:1468-1469.

	Since this article does not have an abstract, we have provided the first 150 words of the full text and any section headings.

Transient global amnesia (TGA) is an episodic dysfunction of declarative memory that usually resolves within less than 12 hours. Its cause is still poorly understood.

Studies on neuroimaging findings in TGA are heterogeneous and conflicting and most of them report the lack of obvious abnormalities.¹ A recent study demonstrates a punctuate lesion on diffusion-weighted images (DWIs) in the hippocampus in more than 80% of patients with TGA.² Can this hippocampal lesion be considered the structural correlate of TGA? Here we confirm the presence of this abnormality in 3 patients with TGA. The diagnosis of TGA was based on the current criteria.³ Within 5 months, 4 consecutive patients (aged 67, 65, 60, and 62 years) with TGA underwent brain magnetic resonance imaging (MRI). The MRI was performed within 4 days of the onset of symptoms: on day 3 in patient 1, on day 2 in patient 2, on day 4 in . . . [Full Text of this Article]

AUTHOR INFORMATION

Alessandro Cianfoni, MD; Tommaso Tartaglione, MD; Simona Gaudino, MD; Fabio Pilato, MD; Eleonora Saturno, MD; Pietro A. Tonali, MD; Vincenzo Di Lazzaro, MD

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ABSTRACT | FULL TEXT