Diffuse cauda equina nerve root enlargement: diagnostic challenges, clinicopathological spectrum, and the role of surgical biopsy - Takeaways - MDSpire

Challenges in Diagnosing Diffuse Enlargement of Cauda Equina Nerve Roots: A Review of Clinical and Pathological Aspects and the Importance of Surgical Biopsy

  • By

  • Chunli Lu

  • Xingwen Wang

  • Min Yin

  • Haipeng Si

  • July 17, 2026

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  • 1

    Diffuse enlargement of cauda equina nerve roots is a rare radiological finding with diverse underlying causes, complicating diagnosis.

  • 2

    A retrospective review of 12 patients revealed various etiologies, including malignant lymphoma and immune-mediated neuropathies.

  • 3

    Surgical biopsy provided critical pathological information in cases with diagnostic uncertainty, aiding in definitive diagnosis.

  • 4

    Patients with lymphoma responded favorably to chemotherapy, while those with immune-mediated disorders improved with immunotherapy.

  • 5

    The study highlights the need for careful diagnostic evaluation and the potential role of surgical biopsy in ambiguous cases.

Original Source(s)

Diffuse cauda equina nerve root enlargement: diagnostic challenges, clinicopathological spectrum, and the role of surgical biopsy

  • by Chunli Lu, Xingwen Wang, Min Yin, Haipeng Si

  • July 17, 2026

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