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KMID : 0363219990370050641
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Korean Journal of Dermatology
1999 Volume.37 No. 5 p.641 ~ p.645
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A Case of Ki-1 Positive Large-Cell Lymphoma Transformed from Mycosis Fungoides
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Ro Young-Suck
Park Chan-Kum
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Abstract
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Mycosis fungoides(MF) is a cutaneous T-cell lymphoma of low-grade malignancy characterized by the proliferation of small to medium-sized cerebriform lymphoid cells confined to the skin. It usually shows favorable prognosis, but morphologic transformation occurs in some cases and is often associated with a more aggressive clinical course. Herein we report a case of Ki-1 positive large cell lyrnphoma (Ki-1 LCL) which developed in the plaque stage of mycosis fungoides. Although the lesions responded well to low-dose methotrexate therapy and there was no evidence of local or systemic recurrence until now, continuous follow-up is needed because the prognosis of transformed MF is known to be poor compared with primary cutaneous Ki-1 LCL. We also discussed the differential diagnosis of primary cutaneous Ki-1 positive lymphoproliferative disorders. (Korean J Dermatol 1999;37(5) : 641-645)
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KEYWORD
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Mycosis fungoides, Ki-1 positive large cell lymphoma, Transformation,
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