Hostname: page-component-848d4c4894-p2v8j Total loading time: 0 Render date: 2024-05-01T07:45:22.294Z Has data issue: false hasContentIssue false
  • English
  • Français

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: aarontrinidade@gmail.com
Get access Rights & Permissions [Opens in a new window]

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

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

1Kayes, AV, Bancroft, LW, Tennyson, GS, O'Connor, MI. Myofibroma of the upper arm in a 52-year-old woman. Skeletal Radiol 2002;31:240–5CrossRefGoogle ScholarPubMed
2Stout, AP. Juvenile fibromatoses. Cancer 1954;7:953–783.0.CO;2-W>CrossRefGoogle ScholarPubMed
3Chung, EB, Enzinger, FM. Infantile myofibromatosis. Cancer 1981;48:1807–183.0.CO;2-G>CrossRefGoogle ScholarPubMed
4Requena, L, Kutzner, H, Hügel, H, Rütten, A, Furio, V. Cutaneous adult myofibroma: a vascular neoplasm. J Cutan Pathol 1996;23:445–57CrossRefGoogle ScholarPubMed
5Lingen, MW, Mostofi, RS, Solt, DB. Myofibromas of the oral cavity. Oral Surg Oral Med Oral Pathol Oral Radiol Endod 1995;80:297–302CrossRefGoogle ScholarPubMed
6Speight, PM, Dayan, D, Fletcher, CDM. Adults and infantile myofibromatosis – a report of 3 cases affecting the oral cavity. J Oral Pathol Med 1991;20:380–4CrossRefGoogle Scholar
7Walsh, M, Leen, EJ, Gleeson, MJ. Solitary infantile and adult myofibromatosis of the nasal cavity: a report of two cases. J Laryngol Otol 1996;110:574–7CrossRefGoogle ScholarPubMed
8Hogan, SF, Salassa, JR. Recurrent adult myofibromatosis – a case report. Am J Clin Pathol 1992;97:810–14CrossRefGoogle ScholarPubMed
9Kassenoff, TL, Tabaee, A, Kacker, A. Myofibroma of the cheek: a case report. Ear Nose Throat J 2004;83:404–7CrossRefGoogle ScholarPubMed
10Izumaru, S, Yoshida, Y, Nakashima, T. A solitary fibrous tumor in the external auditory meatus. Auris Nasus Larynx 2004;31:65–7CrossRefGoogle ScholarPubMed
11Gozeler, M, Suoglu, Y, Enoz, M, Colhan, I, Demiryont, M. Myofibroma of the external auditory canal: report of an adult case. B-ENT 2009;5:273–5Google ScholarPubMed
12Balakrishnan, R, Pujary, K, Shah, P, Hazarika, P. Solitary adult myofibroma of the pinna. J Laryngol Otol 1999;113:155–7CrossRefGoogle ScholarPubMed
13Hartig, G, Koopmann, C, Esclamado, R. Infantile myofibromatosis – a commonly mis-diagnosed entity. Otolaryngol Head Neck Surg 1993;109:753–7CrossRefGoogle Scholar
14Azevedo, RDS, Pires, FR, Della Coletta, R, De Almeida, OP, Kowalski, LP, Lopes, MA. Oral myofibromas: report of two cases and review of clinical and histopathologic differential diagnosis. Oral Surg Oral Med Oral Pathol Oral Radiol Endod 2008;105:E35–40CrossRefGoogle ScholarPubMed
15Darby, I, Skalli, O, Gabbiani, G. Alpha-smooth muscle actin is transiently expressed by myofibroblasts during experimental wound-healing. Lab Invest 1990;63:21–9Google ScholarPubMed