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  • Title: 'Scan-negative' cauda equina syndrome: what to do when there is no neurosurgical cause.
    Author: Hoeritzauer I, Stanton B, Carson A, Stone J.
    Journal: Pract Neurol; 2022 Feb; 22(1):6-13. PubMed ID: 34389643.
    Abstract:
    Suspected cauda equina syndrome is a common presentation in emergency departments, but most patients (≥70%) have no cauda equina compression on imaging. As neurologists become more involved with 'front door' neurology, referral rates of patients with these symptoms are increasing. A small proportion of patients without structural pathology have other neurological causes: we discuss the differential diagnosis and how to recognise these. New data on the clinical features of patients with 'scan-negative' cauda equina syndrome suggest that the symptoms are usually triggered by acute pain (with or without root impingement) causing changes in brain-bladder feedback in vulnerable individuals, exacerbated by medication and anxiety, and commonly presenting with features of functional neurological disorder.
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