Age-specific cutaneous B-cell lymphoma incidence rates and age distributions at diagnosis from 2001-2005 in the 16 SEER registries by sex. (A-D) Rates per 1 million person-years are shown for (A) all cutaneous B-cell lymphomas (CBCL) combined, (B) primary cutaneous marginal zone lymphoma (pcMZL), (C) primary cutaneous follicle center lymphoma (pcFCL), and (D) primary cutaneous diffuse large B-cell lymphoma (pcDLBCL). (E-H) Density plots are shown for (E) all CBCL combined, (F) pcMZL, (G) pcFCL, and (H) pcDLBCL. Area under the curve includes 100% of cases. The vertical axis for each density plot represents smoothed estimates of the density of patients (density × 100 = %).