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An unusual case of warfarin-induced pinna skin necrosis

Published online by Cambridge University Press:  17 October 2008

M Martinez Del Pero*
Affiliation:
Department of ENT, Addenbrooke's Hospital, Cambridge, UK
S Verma
Affiliation:
Department of ENT, Addenbrooke's Hospital, Cambridge, UK
A Espeso
Affiliation:
Department of ENT, Addenbrooke's Hospital, Cambridge, UK
M Griffiths
Affiliation:
Department of Histopathology, Addenbrooke's Hospital, Cambridge, UK
P Jani
Affiliation:
Department of ENT, Addenbrooke's Hospital, Cambridge, UK
*
Address for correspondence: Mr M Martinez Del Pero, Clinical Research Fellow, Department of Otolaryngology, University of Cambridge Addenbrooke's NHS Trust, Hills Road, Cambridge CB1 1QQ, UK. Fax: 01223 217559 E-mail: marcos@doctors.org.uk

Abstract

Introduction:

Warfarin-induced skin necrosis is a rare but recognised complication of this drug. The condition predominantly affects the breasts, buttocks and thighs of obese, peri-menopausal women. We present the case of a patient with the condition in an unusual site, and we discuss the management challenges involved.

Case report:

An 82-year-old man presented to the ENT department with a diagnosis of pinna haematoma. There was no history of trauma or infection. The patient was taking warfarin long-term for recurrent deep vein thrombosis. Two weeks prior to admission, the patient had had a loading course of warfarin following surgery. Multiple clinical teams were involved in treatment. The only abnormal laboratory investigation was a low protein S level; biopsy showed skin necrosis.

Conclusion:

In this case, the unusual presentation created diagnostic confusion, and may have precipitated aggressive surgical debridement. However, a more conservative management strategy was used, which we would recommend in future.

Type
Clinical Records
Copyright
Copyright © JLO (1984) Limited 2008

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References

1 Egred, M, Rodrigues, E. Purple digit syndrome and warfarin-induced skin necrosis. Eur J Intern Med 2005;16:294–5CrossRefGoogle ScholarPubMed
2 Roche-Nagle, G, Robb, W, Ireland, A, Bouchier-Hayes, D. Extensive skin necrosis associated with warfarin sodium therapy. Eur J Vasc Endovasc Surg 2003;25:481–2CrossRefGoogle ScholarPubMed
3 Warkentin, TE, Sikov, WM, Lillicrap, DP. Multicentric warfarin-induced skin necrosis complicating heparin-induced thrombocytopenia. Am J Hematol 1999;62:44–83.0.CO;2-F>CrossRefGoogle ScholarPubMed
4 Scandling, J, Walker, BK. Extensive tissue necrosis associated with warfarin sodium therapy. South Med J 1980;73:1470–2CrossRefGoogle ScholarPubMed
5 Amato, L, Berti, S, Fabbri, P. Warfarin-induced skin necrosis. Skin Med 2003;2:127–30CrossRefGoogle ScholarPubMed
6 Beitz, JM. Anticoagulant-induced skin necrosis. Am J Nurs 2004;104:31–2CrossRefGoogle ScholarPubMed
7 Clark, JA, Bremner, BR. Fatal warfarin-induced skin necrosis after total hip arthroplasty. J Arthroplasty 2002;17:1070–3CrossRefGoogle ScholarPubMed
8 Moll, S. Warfarin-induced skin necrosis. Br J Haematol 2004;126:628CrossRefGoogle ScholarPubMed
9 Ward, CT, Chavalitanonda, N. Atypical warfarin-induced skin necrosis. Pharmacotherapy 2006;26:1175–9CrossRefGoogle ScholarPubMed
10 Sanchez-Politta, S, Angelillo-Scherrer, A, Masouye, I, Borradori, L. Widespread skin necrosis associated with unfractionated heparin therapy in a patient under chronic coumarin anticoagulation. J Eur Acad Dermatol Venereol 2006;20:327–30CrossRefGoogle Scholar
11 Chan, YC, Valenti, D, Mansfield, AO, Stansby, G. Warfarin induced skin necrosis. Br J Surg 2000;87:266–72CrossRefGoogle ScholarPubMed
12 Tai, CY, Ierardi, R, Alexander, JB. A case of warfarin skin necrosis despite enoxaparin anticoagulation in a patient with protein S deficiency. Ann Vasc Surg 2004;18:237–42CrossRefGoogle Scholar
13 Khalid, K. Warfarin-induced necrosis of the breast: case report. J Postgrad Med 2004;50:268–9Google ScholarPubMed
14 Parsi, K, Younger, I, Gallo, J. Warfarin-induced skin necrosis associated with acquired protein C deficiency. Australas J Dermatol 2003;44:5761CrossRefGoogle ScholarPubMed
15 Scarff, CE, Baker, C, Hill, P, Foley, P. Late-onset warfarin necrosis. Australas J Dermatol 2002;43:202–6CrossRefGoogle ScholarPubMed
16 Comp, PC, Elrod, JP, Karzenski, S. Warfarin-induced skin necrosis. Semin Thromb Hemost 1990;16:293–8CrossRefGoogle ScholarPubMed
17 Bauer, KA. Hypercoagulability – a new cofactor in the protein C anticoagulant pathway. N Engl J Med 1994;330:566–7CrossRefGoogle ScholarPubMed
18 Essex, DW, Wynn, SS, Jin, DK. Late-onset warfarin-induced skin necrosis: case report and review of the literature. Am J Hematol 1998;57:233–73.0.CO;2-B>CrossRefGoogle ScholarPubMed
19 Lewandowski, K, Zawilska, K. Protein C concentrate in the treatment of warfarin-induced skin necrosis in the protein C deficiency. Thromb Haemost 1994;71:395Google ScholarPubMed
20 DeFranzo, AJ, Marasco, P, Argenta, LC. Warfarin-induced necrosis of the skin. Ann Plast Surg 1995;34:203–8CrossRefGoogle ScholarPubMed