Sir, In the treatment of cutaneous T-cell lymphomas, radiotherapy plays a well-known role in the management of mycosis fungoides (MF) and Sezary syndrome, as localized radiotherapy or total skin electron-beam irradiation. Furthermore, radiotherapy has been indicated as first choice treatment in large cell CD30+ lymphomas (LCCD30+L) (1, 2), and in pleomorphic small/medium-sized cells lymphomas (PSMSL) (1, 3, 4). The former is characterized by a single nodularulcerative lesion or grouped nodules, rarely multifocal, sometimes spontaneously regressing, showing histopathologically a diffuse non-epidermotropic infiltrate of large cells expressing CD30 phenotype. The latter is defined by the occurrence of one or several dark red nodules, due to a neoplastic infiltrate of pleomorphic small/medium-sized cells, without clinical evidence of concurrent patches typical for mycosis fungoides. In this short report we update our data on the radiological treatment of LCCD30+L (5), evaluate the results of radiotherapy in the treatment of PSMSL, and compare our findings with those reported in the literature (1–4, 6).