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Please use this identifier to cite or link to this item: http://repository.li.mahidol.ac.th/dspace/handle/123456789/12170
Title: Cutaneous involvement by colonic extranodal NK/T-cell lymphoma mimicking mycosis fungoides: A case report
Authors: Panitta Sitthinamsuwan
Tawatchai Pongpruttipan
Sumanas Bunyaratavej
Ekapan Karoopongse
Tanawan Kummalue
Sanya Sukpanichnant
Mahidol University
Keywords: Medicine
Issue Date: 1-Dec-2011
Citation: Journal of Cutaneous Pathology. Vol.38, No.12 (2011), 1004-1008
Abstract: We report a 51-year-old woman with cutaneous involvement by extranodal NK/T-cell lymphoma (TCL) of the colon that microscopically mimicked mycosis fungoides (MF). She had a history of fever of unknown origin for 2 months and then developed multiple erythematous papules on her trunk and extremities. A skin biopsy revealed superficial infiltration by atypical small to medium-sized lymphocytes with epidermotropism and Pautrier collections. Immunohistochemical studies showed expression of CD3 and TIA-1 with lack of expression (double negative) of CD4 and CD8. Initially, we reported the diagnosis as MF, cytotoxic variant. Thereafter, computerized tomography scan incidentally identified a colonic mass. A colonic biopsy revealed infiltration of atypical lymphoid cells with the same morphology and immunophenotype as those found in the skin. Additionally, CD56 and Epstein-Barr virus-encoded RNA in situ hybridization in both skin and colonic biopsies were diffusely positive. Thus, extranodal NK/TCL was diagnosed. Delta T-cell receptor (TCR) gene rearrangement was documented in the skin biopsy by polyacrylamide gel electrophoresis and fluorescence capillary gel electrophoresis methods. There was no TCR gene rearrangement detected in the colonic biopsy. Unfortunately, the patient died within 2 months of diagnosis. Copyright © 2011 John Wiley & Sons A/S.
URI: https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=80755163493&origin=inward
http://repository.li.mahidol.ac.th/dspace/handle/123456789/12170
ISSN: 16000560
03036987
Appears in Collections:Scopus 2011-2015

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