Causes of Aphasia - Differential Diagnosis Algorithm

Fluent - Grammatically correct, but nonsensical, tangential. Phonemic & semantic paraphasias

Non-Fluent - Agrammatic, hesitant, but substantive communication

Impaired Repetition

 • Impaired Comprehension - Wernicke's Aphasia, Global Aphasia

 • Intact Comprehension - Conduction Aphasia, Broca's Aphasia

Intact Repetition

 • Impaired Comprehension - Transcortical Sensory Aphasia, Mixed Transcortical Aphasia

 • Intact Comprehension - Anomic Aphasia, Transcortical Motor Aphasia



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