WHO-EORTC classification for cutaneous lymphomas.

@article{Willemze2005WHOEORTCCF,
  title={WHO-EORTC classification for cutaneous lymphomas.},
  author={Rein Willemze and Elaine S. Jaffe and Günter Burg and Lorenzo Cerroni and Emilio Berti and Steven H. Swerdlow and Elisabeth Methner Ralfkiaer and Sergio Chimenti and Jos{\'e} Lu{\'i}s D{\'i}az-P{\'e}rez and Lyn McDivitt Duncan and F. Grange and Nancy Lee Harris and Werner Kempf and Helmut Kerl and Michael Odo Kurrer and Robert Knobler and Nicola Pimpinelli and Christian A. Sander and Marco Santucci and Wolfram Sterry and Maarten H. Vermeer and Janine Wechsler and Sean J. Whittaker and Chris J.L.M. Meijer},
  journal={Blood},
  year={2005},
  volume={105 10},
  pages={
          3768-85
        }
}
Primary cutaneous lymphomas are currently classified by the European Organization for Research and Treatment of Cancer (EORTC) classification or the World Health Organization (WHO) classification, but both systems have shortcomings. In particular, differences in the classification of cutaneous T-cell lymphomas other than mycosis fungoides, Sezary syndrome, and the group of primary cutaneous CD30+ lymphoproliferative disorders and the classification and terminology of different types of… 
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The characteristic features of these new and modified entities as well as the results of recent molecular studies with diagnostic, prognostic, and/or therapeutic significance for the different types of primary cutaneous lymphomas are reviewed.
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Classification and treatment of rare and aggressive types of peripheral T-cell/natural killer-cell lymphomas of the skin.
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TLDR
Primary cutaneous lymphomas are defined as nonHodgkin lymphomas that present in the skin with no evidence of extracutaneous disease at the time of diagnosis and must be distinguished from nodal or systemic malignant lymphomas involving the skin secondarily.
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