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Anatomy of the Ear

Anatomy of the Ear

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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Updated: Jun 17, 2026

Intrathecal Application of a Fluorescent Dye for the Identification of Cerebrospinal Fluid Leaks in Cochlear Malformation

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A non-traumatic, blue-purple auricle: case report.

A Sewnaik¹, J Kamarashev, N S Peters

¹Department of Otorhinolaryngology, Head and Neck Surgery, Erasmus Medical Center Rotterdam, The Netherlands.

The Journal of Laryngology and Otology

|December 17, 2009

Summary

This summary is machine-generated.

A 10-year-old girl with a blue earlobe was diagnosed with Lyme disease. This case highlights borrelial lymphocytoma as a manifestation of Lyme borreliosis, successfully treated with antibiotics.

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Area of Science:

Dermatology
Infectious Diseases
Otolaryngology

Background:

Lyme borreliosis, caused by Borrelia burgdorferi, is the most prevalent tick-borne illness in the Northern Hemisphere.
Borrelial lymphocytoma is a rare manifestation of Lyme disease, often presenting in the head and neck region.

Observation:

A pediatric patient presented with a distinctive blue-colored earlobe lesion.
Diagnostic workup, including serological tests, confirmed Lyme disease.

Findings:

The earlobe lesion was identified as lymphocytoma, a recognized sign of Lyme borreliosis.
Successful treatment of the patient was achieved through a course of antibiotics.

Implications:

This case underscores the importance of considering Lyme disease in the differential diagnosis of earlobe lesions.
Understanding the ENT symptomatology of Lyme disease is crucial for timely diagnosis and effective management.
Highlights the diagnostic challenges and clinical presentation of borrelial lymphocytoma.