You suspect intermediate aphasia in a patient. Before revealing the answer, decide how you would assess for this.
Establish first that the language disturbance does not fit a purely receptive or purely expressive pattern, since this is the defining feature of the broader category. Test naming specifically, asking the patient to name a series of objects, since disproportionate difficulty here, with otherwise intact grammar, points toward nominal aphasia. Test grammar, sentence structure, and both comprehension and production together, since a broader mixed disturbance affecting all of these, along with paraphasic errors, points instead toward central aphasia. Note any relevant focal lesion, since intermediate aphasia is often associated with damage in the temporoparietal region, though the precise pattern varies by sub-type.
References
- Casey, P. & Kelly, B. (2019). Fish's Clinical Psychopathology, 4th ed. Ch. 4, 'Disorders of Thought and Speech'.