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Incidental pineal cysts in children who undergo 3-T MRI

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Abstract

Background

Pineal cysts, both simple and complex, are commonly encountered in children. More cysts are being detected with MR technology; however, nearly all pineal cysts are benign and require no follow-up.

Objective

To discover the prevalence of pineal cysts in children at our institution who have undergone high-resolution 3-T MRI.

Materials and methods

We retrospectively reviewed 100 consecutive 3-T brain MRIs in children ages 1 month to 17 years (mean 6.8 ± 5.1 years). We evaluated 3-D volumetric T1-W imaging, axial T2-W imaging, axial T2-W FLAIR (fluid attenuated inversion recovery) and coronal STIR (short tau inversion recovery) sequences. Pineal parenchymal and cyst volumes were measured in three planes. Cysts were analyzed for the presence and degree of complexity.

Results

Pineal cysts were present in 57% of children, with a mean maximum linear dimension of 4.2 mm (range 1.5–16 mm). Of these cysts, 24.6% showed thin septations or fluid levels reflecting complexity. None of the cysts demonstrated complete T2/FLAIR signal suppression. No cyst wall thickening or nodularity was present. There was no significant difference between the ages of children with and without cysts. Cysts were more commonly encountered in girls than boys (67% vs. 52%; P = 0.043). There was a slight trend toward increasing pineal gland volume with age.

Conclusion

Pineal cysts are often present in children and can be incidentally detected by 3-T MRI. Characteristic-appearing pineal cysts in children are benign, incidental findings, for which follow-up is not required if there are no referable symptoms or excessive size.

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Acknowledgments

This work was presented at the 98th Scientific Assembly and Annual Meeting of the Radiological Society of North America, Nov. 25-30, 2012.

Conflicts of interest

None.

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Authors and Affiliations

  1. Department of Radiology, University of Tennessee Health Science Center, Memphis, TN, USA

    Matthew T. Whitehead, Christopher C. Oh & Asim F. Choudhri

  2. Le Bonheur Neuroscience Institute, Le Bonheur Children’s Hospital, Memphis, TN, USA

    Matthew T. Whitehead, Christopher C. Oh & Asim F. Choudhri

  3. Department of Radiology, Le Bonheur Children’s Hospital, 50 N. Dunlap St. G216, Memphis, TN, 38103, USA

    Matthew T. Whitehead

  4. Department of Neurosurgery, University of Tennessee Health Science Center, Memphis, TN, USA

    Asim F. Choudhri

Authors
  1. Matthew T. Whitehead
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  2. Christopher C. Oh
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Correspondence to Matthew T. Whitehead.

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Whitehead, M.T., Oh, C.C. & Choudhri, A.F. Incidental pineal cysts in children who undergo 3-T MRI. Pediatr Radiol 43, 1577–1583 (2013). https://doi.org/10.1007/s00247-013-2742-x

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  • DOI: https://doi.org/10.1007/s00247-013-2742-x

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