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December 04, 2018; 91 (23) Resident & Fellow Section

Teaching NeuroImages: Radiologic features of septo-optic dysplasia plus syndrome

Mario Ganau, Giacomo Talenti, Felice D'Arco
First published December 3, 2018, DOI: https://doi.org/10.1212/WNL.0000000000006631
Mario Ganau
From the Department of Neurosurgery (M.G.), Oxford University Hospitals, UK; Department of Diagnostics and Pathology (G.T.), Verona University Hospital, Italy; and Department of Neuroradiology (F.D.), Great Ormond Street Hospital For Children, London, UK.
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Giacomo Talenti
From the Department of Neurosurgery (M.G.), Oxford University Hospitals, UK; Department of Diagnostics and Pathology (G.T.), Verona University Hospital, Italy; and Department of Neuroradiology (F.D.), Great Ormond Street Hospital For Children, London, UK.
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Felice D'Arco
From the Department of Neurosurgery (M.G.), Oxford University Hospitals, UK; Department of Diagnostics and Pathology (G.T.), Verona University Hospital, Italy; and Department of Neuroradiology (F.D.), Great Ormond Street Hospital For Children, London, UK.
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Citation
Teaching NeuroImages: Radiologic features of septo-optic dysplasia plus syndrome
Mario Ganau, Giacomo Talenti, Felice D'Arco
Neurology Dec 2018, 91 (23) e2200-e2201; DOI: 10.1212/WNL.0000000000006631

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A 17-month-old boy showing features of global developmental delay and visual impairment, despite physiologic head circumference growth (between the 50th and 85th centile), was admitted for investigations. On examination, he appeared alert, with pale optic discs, horizontal jerk nystagmus, spasticity, and small genitalia.

MRI brain (figure) excluded hydrocephalus, demonstrating instead hallmarks of neuronal migration disorder.1 Besides schizencephaly, multiple midline abnormalities were noticed, such as optic nerve hypoplasia and achiasmia (deficient chiasmal decussation), pituitary hypoplasia, and absence of septum pellucidum.1,2 Hormonal tests demonstrated panhypopituitarism; hence care was transferred to the septo-optic dysplasia (SOD) multidisciplinary group for management of SOD plus syndrome.1

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Figure MRI brain

(A and B) T2/T1-weighted axial views. (C) T1-weighted sagittal views.Multiple intracranial abnormalities are identified: (A) absent septum pellucidum and bilateral closed-lips schizencephaly; (B) achiasmia (asterisk); (C) pituitary hypoplasia (thin arrow), horizontal course of the fornix (thick arrow), and hypoplastic genu and splenium of corpus callosum.

Author contributions

M. Ganau: study concept and design. M. Ganau and Dr. Talenti: analysis and interpretation. Dr. D'Arco: acquisition of data, critical revision of the manuscript, study supervision.

Study funding

No targeted funding reported.

Disclosure

The authors report no disclosures relevant to this manuscript. Go to Neurology.org/N for full disclosures.

Footnotes

  • Go to Neurology.org/N for full disclosures. Funding information and disclosures deemed relevant by the authors, if any, are provided at the end of the article.

  • Teaching slides links.lww.com/WNL/A755

  • © 2018 American Academy of Neurology

References

  1. 1.↵
    1. Miller SP,
    2. Shevell MI,
    3. Patenaude Y,
    4. Poulin C,
    5. O'Gorman AM
    . Septo-optic dysplasia plus: a spectrum of malformations of cortical development. Neurology 2000;54:1701–1703.
    OpenUrlAbstract/FREE Full Text
  2. 2.↵
    1. Sami DA,
    2. Saunders D
    . The achiasmia spectrum: congenitally reduced chiasmal decussation. Br J Ophthalmol 2005;89:1311–1317.
    OpenUrlPubMed
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