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Related Experiment Video

Updated: May 18, 2026

Surgical Treatment of an Endolymphatic Sac Tumor
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Surgical Treatment of an Endolymphatic Sac Tumor

Published on: May 26, 2023

Papillary endolymphatic sac tumor: a case report.

S Arava1, R M Soumya, S Chitragar

  • 1Department of Pathology, All India Institute of Medical Sciences, Academic Building, Ansari Nagar, New Delhi 110 029, India.

Case Reports in Otolaryngology
|September 7, 2012
PubMed
Summary

Aggressive papillary middle ear tumors are rare, locally destructive neoplasms. Distinguishing these tumors from benign adenomas is crucial due to their invasive potential and intracranial extension.

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Area of Science:

  • Otolaryngology
  • Pathology
  • Neurosurgery

Background:

  • Glandular tumors of the middle ear are uncommon.
  • Differentiating between adenoma and adenocarcinoma can be challenging.
  • A specific subtype exhibits papillary architecture and aggressive local invasion.

Purpose of the Study:

  • To highlight a distinct subclass of middle ear tumors with aggressive features.
  • To emphasize the diagnostic challenges and clinical significance of these neoplasms.
  • To advocate for wider recognition of this pathological entity.

Main Methods:

  • Review of histopathological features of middle ear tumors.
  • Analysis of clinical presentation and behavior of aggressive papillary tumors.
  • Comparison with other benign and malignant middle ear neoplasms.

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Dissection of the Endolymphatic Sac from Mice
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Last Updated: May 18, 2026

Surgical Treatment of an Endolymphatic Sac Tumor
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Published on: May 26, 2023

Surgical Induction of Endolymphatic Hydrops by Obliteration of the Endolymphatic Duct
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Surgical Induction of Endolymphatic Hydrops by Obliteration of the Endolymphatic Duct

Published on: January 22, 2010

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Published on: March 29, 2021

Main Results:

  • A distinct group of middle ear tumors shows papillary architecture and bone erosion.
  • These tumors, termed aggressive papillary middle ear tumors, are locally destructive with frequent intracranial extension.
  • Despite being histologically benign, they can lead to significant morbidity and mortality from uncontrolled local disease.

Conclusions:

  • Aggressive papillary middle ear tumors represent a unique pathological entity.
  • Accurate distinction from other middle ear tumors is essential for appropriate management.
  • These tumors warrant increased awareness among clinicians and pathologists due to their invasive nature.