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Developmentally anomalous cerebellar encephalocele arising within the cerebellopontine angle and extending into the adjacent skull base in a pediatric patient

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A Correction to this article was published on 04 November 2021

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Abstract

Lesions of the cerebellopontine angle (CPA) in young children are rare, with the most common being arachnoid cysts and epidermoid inclusion cysts. The authors report a case of an encephalocele containing heterotopic cerebellar tissue arising from the right middle cerebellar peduncle and filling the right internal acoustic canal in a 2-year-old female patient. Her initial presentation included a focal left 6th nerve palsy. Magnetic resonance imaging was suggestive of a high-grade tumor of the right CPA. The lesion was removed via a retrosigmoid approach, and histopathologic analysis revealed heterotopic atrophic cerebellar tissue. This report is the first description of a heterotopic cerebellar encephalocele within the CPA and temporal skull base of a pediatric patient.

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Acknowledgments

We thank Arie Perry, MD, at the University of California, San Francisco, for assistance with pathological analysis in this case and Kristin Kraus, MSc, for editorial assistance.

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Author notes

  1. Forrest A. Hamrick and Michael Karsy contributed equally and are co-first authors of this work.

  2. Gary L. Hedlund and Samuel H. Cheshier contributed equally and are co-senior authors of this work.

Authors and Affiliations

  1. Division of Pediatric Neurosurgery, Department of Neurosurgery, University of Utah, 100 N. Mario Capecchi Drive, Salt Lake City, UT, 84113, USA

    Forrest A. Hamrick, Michael Karsy & Samuel H. Cheshier

  2. Primary Children’s Hospital, University of Utah, Salt Lake City, UT, USA

    Carol S. Bruggers, Angelica R. Putnam, Gary L. Hedlund & Samuel H. Cheshier

  3. Division of Neuro-Oncology, Department of Pediatrics, University of Utah, Salt Lake City, UT, USA

    Carol S. Bruggers

  4. Department of Pathology, University of Utah, Salt Lake City, UT, USA

    Angelica R. Putnam

  5. Department of Medical Imaging, Primary Children’s Hospital, University of Utah, Salt Lake City, UT, USA

    Gary L. Hedlund

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  1. Forrest A. Hamrick
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  2. Michael Karsy
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  3. Carol S. Bruggers
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  6. Samuel H. Cheshier
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Correspondence to Samuel H. Cheshier.

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The original online version of this article was revised due to a retrospective Open Access cancellation.

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Hamrick, F.A., Karsy, M., Bruggers, C.S. et al. Developmentally anomalous cerebellar encephalocele arising within the cerebellopontine angle and extending into the adjacent skull base in a pediatric patient. Childs Nerv Syst 37, 2943–2947 (2021). https://doi.org/10.1007/s00381-020-05020-8

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  • DOI: https://doi.org/10.1007/s00381-020-05020-8

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