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Wiley InterScience

British Journal of Dermatology

British Journal of Dermatology

Volume 127 Issue 4, Pages 403 - 406

Published Online: 29 Jul 2006

Journal compilation © 2010 British Association of Dermatologists



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Phenytoin-induced pseudolymphoma. A report of a case and review of the literature
D.W.S. HARRIS 1 , L. OSTLERE 1 , C. BUCKLEY 1 , S. WHITTAKER*, P. SWENY M.H.A. RUSTIN 1
  1 Departments of Dermatology   Departments of Nephrology, The Royal Free Hospital and School of Medicine, London NW3 2QG, U.K.   *St John's Dermatology Centre, St Thomas's Hospital, London SE1 7EH, U.K.
Correspondence to  Dr D.W.S.Harris.
Copyright 1992 British Association of Dermatologists

ABSTRACT

Summary We report a patient with phenytoin-induced pseudolymphoma mimicking cutaneous T-cell lymphoma (CTCL). Despite withdrawal of phenytoin, there was persistence of the cutaneous eruption and lymphadenopathy. Southern blot analysis of immunoglobulin and T-cell receptor genes was therefore used to assess whether there was a clonal lymphoid expansion. However, no rearrangement of the beta T-cell receptor gene or immunoglobulin heavy-chain gene was detected in tissue DNA from skin and lymph nodes. One year later the patient became asymptomatic, although he is still at risk of developing a true malignant lymphoma in the future, a condition known as pseudo-pseudolymphoma. It is suggested that genotypic studies may help in the initial diagnosis and the subsequent management of such patients.


Accepted for publication 1 May 1992

DIGITAL OBJECT IDENTIFIER (DOI)
10.1111/j.1365-2133.1992.tb00463.x About DOI

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