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Related Experiment Videos

Haemorrhagic nasal nodules

N D Padgham1, D M Parham

  • 1University Department of Otolaryngology, Ninewells Hospital and Medical School, Dundee, UK.

Clinical Otolaryngology and Allied Sciences
|April 1, 1993
PubMed
Summary

Haemorrhagic nodules, a cause of nosebleeds, are aneurysmal dilatations of arteries. Biopsies reveal hypertensive changes and associated thrombus, explaining their bleeding tendency.

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Area of Science:

  • Vascular pathology
  • Otorhinolaryngology
  • Histopathology

Background:

  • Epistaxis (nosebleeds) in adults can stem from various causes.
  • Haemorrhagic nodules have been previously identified as a significant, yet under-characterized, source of adult epistaxis.

Purpose of the Study:

  • To histologically characterize the nature of haemorrhagic nodules.
  • To elucidate the underlying vascular and pathological features contributing to epistaxis.

Main Methods:

  • Photographic documentation of haemorrhagic nodules.
  • Histopathological examination of biopsy specimens from these nodules.

Main Results:

  • Haemorrhagic nodules represent aneurysmal dilatations of muscular arteries.
  • These arteries exhibit hypertensive changes within their walls.
  • Associated findings include thrombus formation and haemorrhage into surrounding connective tissue.

Conclusions:

  • Haemorrhagic nodules are characterized by arterial aneurysms with hypertensive vascular changes.
  • These pathological features explain their propensity to cause significant epistaxis in adults.

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