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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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Lymphoma Masquerading as an Ear Mass.

Karen N Cuartas¹, Nathaniel R Wilson¹, Jaya Kala¹

¹Internal Medicine, University of Texas Health Science Center at Houston, Houston, USA.

|May 3, 2021

Summary

This summary is machine-generated.

Diffuse large B-cell lymphoma (DLBCL) rarely presents as an ear mass. This case highlights a 38-year-old male with DLBCL manifesting as an ear lesion, emphasizing diagnostic challenges and potential for delayed systemic disease detection.

Keywords:

clinical case report delayed diagnosis diffuse large b cell lymphoma ear neoplasm incidental finding non-hodgkin lymphoma

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Area of Science:

Oncology
Hematology
Pathology

Background:

Malignancies of the ear are infrequently reported and often misdiagnosed.
Diffuse large B-cell lymphoma (DLBCL) is a common non-Hodgkin lymphoma, but its presentation as an ear mass is exceptionally rare in medical literature.

Observation:

A 38-year-old male presented with a four-month history of worsening dyspnea and cough.
Physical examination revealed a significant erythematous, non-tender, immobile mass in the right lower ear, specifically the intertragic notch.
Imaging studies (CT neck and chest) demonstrated enlarged cervical lymph nodes and extensive mediastinal, pulmonary, pleural, and pericardial soft tissue involvement.

Findings:

Biopsy of the ear mass confirmed DLBCL, germinal center B-type.
The patient's symptoms of dyspnea and cough were associated with widespread DLBCL infiltration.

Implications:

This case underscores the importance of considering rare presentations for hematologic malignancies.
Prompt radiological evaluation of persistent respiratory symptoms, even in the presence of an unusual ear mass, is crucial for early diagnosis and management of systemic disease.
Timely diagnosis could potentially mitigate extensive disease spread and reduce patient morbidity.