The "pituitary ring sign": An MRI sign of pituitary apoplexy

Academic Article


  • Purpose: To describe a magnetic resonance imaging (MRI) sign of pituitary apoplexy. Methods: The cranial MRI scans of 3 patients with pituitary apoplexy were retrospectively reviewed. Results: All 3 patients displayed a distinctive MRI sign of an enlarged pituitary gland with peripheral gadolinium enhancement surrounding a hypointense gland. Conclusions: The "pituitary ring sign" can aid in the early diagnosis and treatment of pituitary apoplexy. Copyright © Informa Healthcare.
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    Digital Object Identifier (doi)

    Author List

  • Vaphiades MS
  • Start Page

  • 111
  • End Page

  • 116
  • Volume

  • 31
  • Issue

  • 4