Doctors, what is the difference between sensory aphasia and conduction aphasia ?

It's HUH? vs. DARN!: In sensory aphasia the patient has a comprehension problem. What is said to them is not correctly understood or registered resulting in perfectly formed language which makes little sense in conversation or in context to the situation. In conduction aphasia the patient hears, registers, and comprehends what is told to them. They simply cannot repeat it back correctly or accurately.

Repetition: With transcortical sensory aphasia the ability to repeat is spared. Comprehension is affected. Lots of connecting words are produced. Few substantive words. Repetition, however, is intact. With conductive aphasia comprehension and speech output are intact but one cannot repeat words or sentences. Conductive aphasia is quite rare.

In a transcortical sensory aphasia the speech is fluent, comprehension is impaired, but the patient is able to repeat even long sentences the examiner presents to them. In conduction aphasia the speech is fluent, comprehension is intact , but the patient is unable to repeat. This is a simple breakdown as to what is seen clinically, and helps the examiner with anatomic localization