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Epistaxis, or nosebleeds, occurs when small, swollen blood vessels in the nasal mucous membrane rupture. Typically, the anterior septum is the primary site of occurrence.
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Skin cancer is a type of cancer that occurs when there is an abnormal growth of skin cells, usually triggered by damage to the DNA within the skin cells. It is primarily caused by exposure to ultraviolet (UV) radiation from the sun or artificial sources like tanning beds. Skin cancer is the most common type of cancer worldwide, and its incidence continues to rise.
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Auditory sensation, commonly called hearing, involves the transformation of sonic waves into neural impulses facilitated by the structures of the auditory organ. The prominent, flesh-like structure on the side of the head, called the auricle, directs sound waves towards the auditory canal. The auricle is often mislabeled as the pinna, a term more aligned with mobile structures like a feline's external ear. The auditory canal penetrates the cranium via the external auditory meatus of the...
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Related Experiment Video

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New tender, bleeding papule on the left ear.

Emma Beagles1,2, Allen Shih3,2

  • 1Harvard Medical School, Boston, Massachusetts, USA emmakeay@hms.harvard.edu.

BMJ Case Reports
|January 9, 2024
PubMed
Summary

Chondrodermatitis nodularis helicis (CNH) is a painful ear condition. This case highlights cell phone use, not just sleeping, as a cause for CNH.

Area of Science:

  • Dermatology
  • Medical Case Reports

Background:

  • Chondrodermatitis nodularis helicis (CNH) is an inflammatory ear condition.
  • It typically presents as a painful nodule on the ear's helix, often linked to pressure.
Keywords:
DermatologyGeneral practice / family medicineWound care

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  • Commonly associated causes include sleeping on the affected side.