Mixed Transcortical Aphasia Symptoms
What are the clinical features of mixed transcortical aphasia, where is the lesion responsible for it, and what is its vascular territory?
There is absent spontaneous speech, impaired comprehension, and intact repetition. Stock phrases, such as “you know” and “the thing is,” and echolalia are produced.
The lesion includes the areas that cause transcortical motor and sensory aphasias: the dorsolateral frontal region anterior to the motor cortex and the temporal–parietal–occipital junction.
This lesion may be caused by hypoperfusion in the distribution of the left internal carotid artery, which produces a watershed stroke.
