The primary cutaneous diffuse large B-cell lymphoma, leg type (PCDLBCL-LT) has a poor prognosis. R-CHOP with or without radiotherapy is the available recommendations for first-line treatment. Relapses/refractory cases are frequent with no standardized therapeutic guidelines. Lenalidomide seems to be an excellent therapeutic option as a second-line treatment of relapsed PCDLBCL-LT.
Keywords: chemotherapy; leg type; lenalidomide; primary cutaneous diffuse large B‐cell lymphoma.