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An unusual myofibroblastic proliferation of the pinna

Published online by Cambridge University Press:  12 January 2011

C Rowan ,
A Farboud ,
J Mitchard  and
A Trinidade
C Rowan
Affiliation:
Faculty of Medical Sciences, University of Bristol, Bath, UK
A Farboud
Affiliation:
Department of Otolaryngology, Royal United Hospital, Bath, UK
J Mitchard
Affiliation:
Department of Otolaryngology, Royal United Hospital, Bath, UK
A Trinidade*
Affiliation:
Department of Otolaryngology, Luton & Dunstable District Hospital, UK
*
Address for correspondence: Mr Aaron Trinidade, Luton & Dunstable Hospital, Lewsey Road, Luton LU4 0DZ, UK E-mail: [email protected]
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Abstract

Introduction:

Myofibrosis of the ear is rare. Myofibromas are mesenchymal tumours which usually present in infancy but have been reported sporadically in adults.

Objective:

To present a rare case of trauma as a cause of pinnal myofibrosis.

Design and method:

Case report. A 29-year-old soldier suffered repeated trauma from helmet wear and sports, and presented to our clinic with an exquisitely painful lump in the anti-helix of the pinna.

Results:

The lump was excised uneventfully. Pathology revealed a reactive myofibroblastic proliferation which, given the history of trauma, raised the possibility of a florid cellular repair process. The main differential diagnosis was myofibroma. Immunohistochemistry was used to exclude other possible causes.

Conclusion:

No similar case has previously been reported. The aetiology of myofibroma is unclear, but repeated trauma may be a trigger. Histological and immunohistochemical analysis are recommended when the diagnosis is ambivalent.

Keywords

EarMyofibromaWounds and Injuries
Type
Clinical Records
Information
The Journal of Laryngology & Otology , Volume 125 , Issue 4 , April 2011 , pp. 415 - 417
Copyright
Copyright © JLO (1984) Limited 2011

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