Erratum in Olsen et al. Revisions to the staging and classification of mycosis fungoides and Sézary syndrome: a proposal of the International Society for Cutaneous Lymphomas (ISCL) and the cutaneous lymphoma task force of the European Organization of Research and Treatment of Cancer (EORTC). Blood. 2007;110:1713-1722.

In the article by Olsen et al entitled “Revisions to the staging and classification of mycosis fungoides and Sézary syndrome: a proposal of the International Society for Cutaneous Lymphomas (ISCL) and the cutaneous lymphoma task force of the European Organization of Research and Treatment of Cancer (EORTC),” which appeared in the September 15, 2007, issue of Blood (Volume 110:1713–1722), the sentence on page 1717, first column, should read, “Conversely, the Dutch system uses the diameter (> 7.5 μm) of the nuclei of cerebriform mononuclear cells to define abnormal (neoplastic) cells, and if present, this constitutes early involvement (Grade 2).⁵⁸” This is in accord with what is written in Table 5.