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Blastic natural killer cell and extranodal natural killer cell‐like T‐cell lymphoma presenting in the skin: report of six cases from the U.K.

Summary Background Some lymphomas express natural killer (NK)‐cell markers such as the neural cell adhesion molecule, which is recognized by the CD56 antibody. These lymphomas may present in the skin, but do not represent a homogeneous group. The new World Health Organization classification of lymphoma/leukaemia recognizes several types of NK/T‐cell neoplasm, including blastic NK‐cell lymphoma, which characteristically presents with cutaneous lesions.