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<p>The petrosquamous sinus (PSS) is a rare and almost unknown emissary vein of the temporal bone. Only few cases have been reported in humans and that too by anatomists &amp; radiologists. We report the presence of persistent petrosquamous sinus in temporal bone of a 40 year female who presented with tinnitus, earache and ear discharge and resulted in severe venous hemorrhage from injured PSS while undergoing canal wall down mastoidectomy.</p>

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Persistent Petrosquamous Sinus in Temporal Bone: A Rare Entity

  • 期刊论文

  • 发表日期：

    2025年12月29日

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  • Vishav Yadav,
  • Jasmeet Kaur,
  • Sanjeev Bhagat,
  • Dinesh Kumar Sharma,
  • Ravinder Singh

摘要

The petrosquamous sinus (PSS) is a rare and almost unknown emissary vein of the temporal bone. Only few cases have been reported in humans and that too by anatomists & radiologists. We report the presence of persistent petrosquamous sinus in temporal bone of a 40 year female who presented with tinnitus, earache and ear discharge and resulted in severe venous hemorrhage from injured PSS while undergoing canal wall down mastoidectomy.