Korean J Dermatol.
2000 Feb;38(2):286-288.
A Case of Cutaneous B-Cell Pseudolymphoma
- Affiliations
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- 1Department of Dermatology, Asan Medical Center, College of Medicine,
University of Ulsan, Seoul, Korea.
Abstract
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The differentiation between cutaneous pseudolymphomas and primary cutaneous lymphomas is
often very difficult, but it is important because each of them has different therapeutic
consequences. We report herein a case of cutaneous B-cell pseudolymphoma probably induced
by frequent use of hair dye which mimicked true B-cell lymphoma histologically.
Histopathologic examination revealed diffuse, extensive infiltration of atypical B cells
on the first biopsy, but 2 years later, a rebiopsy revealed well defined lymphoid follicles
in the upper dermis. There was no monoclonality in immunoglobulin gene rearrangement.
The skin lesions were resolved after one month with intra-lesional injection of triamcinolone.