A case of primary cutaneous CD56+, TdT+, CD4+, blastic NK-cell lymphoma in a 19-year-old woman. |
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| Authors: | Sung Eun Chang Hae Jung Choi Jooryung Huh Jee Ho Choi Kyung Jeh Sung Kee Chan Moon Jai Kyoung Koh |
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| Institution: | Department of Dermatology, Asan Medical Center, College of Medicine, University of Ulsan, Seoul, Korea. |
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| Abstract: | The classification of blastic or blastoid natural killer (NK)-cell lymphoma is controversial. Reports of primary cutaneous blastic CD56+ NK-cell lymphoma are rare, which necessitates further clinicopathologic definition of this type of lymphoma. Most CD56+ lymphomas display angiocentric histologic features, especially in Asian patients, and these are mostly associated with the presence of Epstein-Barr virus (EBV) genome and with an aggressive clinical course. We report on a young woman with a primary cutaneous blastic NK lymphoma which showed no angiocentric features but showed an unusual immunophenotype; CD56+, TdT+, CD4+, EBV-, and germline configuration of T-cell receptor gene. This unusual lymphoblastic lymphoma seems to have an immature or progenitor NK cell lineage. |
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