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<p>This case report describes a rare anatomical variation of the chorda tympani nerve encountered during a Transcanal Endoscopic Tympanoplasty. The nerve was found lateral to the tympanic sulcus, embedded within the tympanomeatal flap, and exited the middle ear without a bony canal, coursing toward the malleus handle. This atypical presentation deviates from established classifications and poses a unique surgical challenge in preserving the integrity of the nerve. Careful dissection and meticulous surgical planning are essential to preserve chorda tympani function and to prevent postoperative complications.</p>

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Rare Variation of Chorda Tympani Nerve During an Endoscopic Tympanoplasty

  • 期刊论文

  • 发表日期：

    2025年6月16日

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  • Karthikeyan Ramasamy,
  • Aparna Gopalakrishnan,
  • Vignesh Karunakaran,
  • Saranya Ragavan

摘要

This case report describes a rare anatomical variation of the chorda tympani nerve encountered during a Transcanal Endoscopic Tympanoplasty. The nerve was found lateral to the tympanic sulcus, embedded within the tympanomeatal flap, and exited the middle ear without a bony canal, coursing toward the malleus handle. This atypical presentation deviates from established classifications and poses a unique surgical challenge in preserving the integrity of the nerve. Careful dissection and meticulous surgical planning are essential to preserve chorda tympani function and to prevent postoperative complications.