Primary Cutaneous Lymphomas, Version 2.2019

A clinical practice guideline on the diagnosis, workup, and treatment of patients who have been diagnosed with or are suspected of having primary cutaneous B-cell lymphomas (PCBCLs). The guideline focuses on the three main types of PCBCLs: primary cutaneous marginal zone lymphoma (PCMZL), primary cutaneous follicle-center lymphoma (PCFCL), and primary cutaneous diffuse large B-cell lymphoma, leg type (PCDLBCL, leg type). Recommendations for treatment are provided based on lymphoma type and whether treatment is for initial, relapsed, or refractory disease.