Transcortical aphasia

Classification according to ICD-10
R47.0	Dysphasia and aphasia
ICD-10 online (WHO version 2019)

Transcortical aphasia is a rare form of aphasia (speech disorder after neurological diseases). In transcortical aphasia, the person affected is not able to formulate language independently, but can only repeat it. There are two types of transcortical aphasia - transcortical sensory aphasia and transcortical motor aphasia .

Transcortical motor aphasia

Affected people hardly speak or not at all, but are able to repeat what has been given with good articulation and intact syntax . Furthermore, their understanding is intact and they can read aloud.

The typical lesion sites of this disorder are the frontal lobe (anterior to Broca's area ) and the supplementary motor cortex .

Transcortical sensory aphasia

The speech of these aphasic persons resembles the picture of a Wernicke aphasia . Symptoms are semantic paraphasias and echolalia of spontaneous speech. They have an exceptionally well-preserved repetition performance, although they are often unable to grasp the content of the repetition.

The typical lesion site is in the posterior temporo-parietal area , whereby the Wernicke area is not affected.

This article is about a health issue. It is not used for self-diagnosis and does not replace a diagnosis by a doctor. Please note the information on health issues !