# A Case of Mirror-Image Crossed Thalamic Aphasia With Jargon Agraphia

## TL;DR

An 81-year-old right-handed woman developed aphasia from a right thalamic infarction, showing features of left thalamic aphasia and jargon agraphia.

## Contribution

This case highlights a rare instance of crossed thalamic aphasia with jargon agraphia in a right-handed individual.

## Key findings

- The patient exhibited typical features of left thalamic aphasia despite a right thalamic infarction.
- Jargon agraphia was observed during writing tasks, suggesting disinhibition of left hemisphere writing motor memory.

## Abstract

In right-handed individuals, aphasia resulting from right hemisphere damage is termed crossed aphasia and has a very low occurrence rate. Additionally, aphasia due to thalamic lesions often involves hemorrhage, with infarction cases less frequently reported. We present the case of an 81-year-old right-handed female who developed aphasia due to a right thalamic infarction. She exhibited characteristics typical of thalamic aphasia observed in left thalamic lesions. Furthermore, jargon agraphia manifested during writing tasks. This may suggest disinhibition of the left hemisphere writing motor memory by the right hemisphere language function.