John Patten Neurological Differential Diagnosis Pdf Free May 2026

Below is a concise synopsis of the most frequently consulted sections.

| Chapter | Core Differentials Covered | Key Decision Points | |---------|----------------------------|---------------------| | Headache | Migraine, tension‑type, cluster, temporal arteritis, intracranial mass, SAH, meningitis, CVT | Onset (gradual vs thunderclap), pain quality, associated neuro signs, systemic features | | Seizure | Provoked (metabolic, toxic, infection), idiopathic epilepsy, structural lesions, autoimmune encephalitis | Post‑ictal state, focal vs generalized, EEG patterns, MRI lesions | | Focal Weakness | Stroke (ischemic/hemorrhagic), demyelinating disease, peripheral neuropathy, motor neuron disease, myopathy | Sudden vs progressive, distribution (upper vs lower motor neuron signs), vascular risk factors, spinal cord compression | | Sensory Loss | Peripheral neuropathy, radiculopathy, spinal cord lesion, central thalamic syndrome, functional disorder | Dermatomal vs peripheral pattern, pain vs numbness, symmetry, temperature discrimination | | Gait Disturbance | Cerebellar ataxia, Parkinsonism, normal pressure hydrocephalus, peripheral neuropathy, myelopathy | Romberg sign, direction of sway, cognitive involvement, response to dopaminergic therapy | | Altered Mental Status | Delirium, metabolic encephalopathy, infectious (meningitis/encephalitis), structural (tumor, bleed), neurodegenerative | Fluctuation, pupillary changes, focal deficits, EEG background | John Patten Neurological Differential Diagnosis Pdf Free

Patten’s signature approach asks five sequential questions for any neurologic presentation: Below is a concise synopsis of the most

Answering these guides you to the appropriate differential list and urgent investigations (e.g., CT head within 10 min for suspected SAH). Answering these guides you to the appropriate differential

| Strength | Limitation | |----------|------------| | Compact, high‑density format – ideal for quick reference on call. | Limited depth – for complex, rare entities, supplemental texts (e.g., Adams & Victor’s) are still needed. | | Evidence‑based tables – references to up‑to‑date guidelines (e.g., AHA/ASA 2023 stroke). | Static PDF – lacks interactive features (searchable tags, adaptive learning). | | Free and openly accessible – removes cost barrier for trainees. | Potential for outdated content – periodic updates required; the current version reflects literature up to 2022. | | Visual algorithms – improve retention and decision speed. | Limited pediatric focus – most differentials are adult‑centric. |