Transient global amnesia

Case contributed by Dr Rodrigo Dias Duarte

Presentation

Episodes of memory loss over the last 6 months, currently undergoing a clinical investigation for dementia.

Patient Data

Age: 60 years
Gender: Female
MRI

MRI Brain

MRI demonstrates small punctate hyperintense foci on the lateral edge of the left hippocampus on diffusion-weighted imaging, with corresponding decreased ADC at the same location. There are no other pathological findings.

Annotated image

Annotated images

Foci on the lateral edge of the left hippocampus on diffusion-weighted imaging, with decreased ADC at the same location (red arrows).

Case Discussion

The main importance of lesion detection in transient global amnesia (TGA) is to exclude urgent differential diagnoses, such as transient ischemic attack (TIA), seizures, and drug-induced amnesia.

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Case information

rID: 60129
Published: 8th May 2018
Last edited: 10th Aug 2018
Tag: tga, amnesia
Inclusion in quiz mode: Included

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