Gy: gray; PC-FCL: primary cutaneous follicle center lymphoma; RT: radiation therapy.
* The preferred RT dose is 20 to 24 Gy with a ≥1 to 1.5 cm margin of uninvolved skin. Surgical excision, observation, or topical or intralesional corticosteroid injections are acceptable options, based on disease location or patient preference.
¶ Treatment that requires >3 sites for RT is considered extensive/diffuse disease, but this may vary among clinicians and patients.
Δ Additional symptomatic lesions can be treated with topical or intralesional steroids, low-dose RT (eg, 2 Gy × 2), or observed.