期刊
BRITISH JOURNAL OF DERMATOLOGY
卷 144, 期 6, 页码 1235-1238出版社
WILEY
DOI: 10.1046/j.1365-2133.2001.04240.x
关键词
carbamazepine; clonality; pseudolymphoma; sodium valproate
类别
We report a patient with a sodium valproate-induced cutaneous pseudolymphoma, presenting with an erythematous papule, histologically mimicking a non-epidermotropic T-cell lymphoma. Polymerase chain reaction study of the skin biopsy revealed monoclonal rearrangement of the T-cell receptor gamma gene. Withdrawal of sodium valproate was followed by regression of the lesion, but 5 months after substitution by carbamazepine, two further papules appeared, with similar histological features and a T-cell clone identical to the initial one. Carbamazepine was stopped and the lesions disappeared without relapse over a 4-year follow-up. Sodium valproate is very rarely responsible for a hypersensitivity syndrome, and our case is the first report of sodium valproate-induced cutaneous pseudolymphoma. The recurrence with carbamazepine may be due to a common effect on T-cell lymphocyte function. The return of the same monoclonal population shows that the recurrence of monoclonal T cells may be observed in benign conditions and is not an exclusive hallmark of cutaneous lymphoma.
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