A cognitive disorder marked by an impaired ability to comprehend or express language in its written or spoken form. This condition is caused by diseases which affect the language areas of the dominant hemisphere. Clinical features are used to classify the various subtypes of this condition. General categories include receptive, expressive, and mixed forms of aphasia.

Synonyms: Aphasia, Auditory Discriminatory, Semantic Aphasias, Word Deafness, Commisural Aphasia, Lichtheims Sign, Dysphasia, Global, Phenomenon, Dejerine-Lichtheim, Commisural Aphasias, Semantic Aphasia, Global Aphasias, Logasthenia, Alogias, Deafness, Word, Logamnesias, Discriminatory Aphasias, Auditory, Logasthenias, Syntactical Aphasia, Graphomotor Aphasia, Aphasia, Global, Functional Aphasias, Acquired Aphasia, Post-Ictal Aphasias, Dejerine Lichtheim Phenomenon, Mixed Aphasias, Alogia, Aphasia, Syntactical, Dysphasia, Intellectual Aphasias, Functional Aphasia, Mixed Aphasia, Aphasia, Acquired, Aphasias, Commisural, Logagnosia, Discriminatory Aphasia, Auditory, Aphasia, Mixed, Auditory Discriminatory Aphasia, Aphasia, Sign, Lichtheim's, Intellectual Aphasia, Aphasia, Commisural, Progressive Aphasia, Post-Traumatic Aphasias, Lichtheim's Sign, Aphasia, Intellectual, Post-Ictal Aphasia, Global Dysphasias, Anepias, Aphasia, Post-Ictal, Graphomotor Aphasias, Syntactical Aphasias, Logagnosias, Aphasia, Semantic, Ageusic Aphasias, Global Aphasia, Aphasia, Ageusic, Global Dysphasia, Aphasia, Post-Traumatic, Aphasia, Functional, Logamnesia, Aphasia, Post Ictal, Progressive Aphasias, Aphasia, Post Traumatic, Dejerine-Lichtheim Phenomenon, Post-Traumatic Aphasia, Aphasia, Progressive, Aphasia, Graphomotor, Anepia, Ageusic Aphasia, Auditory Discriminatory Aphasias, Lichtheim Sign