Clinical application of lying-on-the-floor total skin electron irradiation for frail patients with cutaneous lymphoma: An emphasis on the importance of in vivo dosimetry

Total skin electron irradiation (TSEI) is an effective option for cutaneous T-cell lymphoma (CTCL). Two conventional methods used to deliver TSEI are the Stanford multiple dual field technique and the McGill rotational technique; however, both techniques require patients to stand for 10 to 30 minutes and cannot be used in nonambulatory patients. Our group has previously described technical parameters for “lying-on-the-floor” total skin electron beam therapy for nonambulatory patients.Wenow report clinical implementation of this technique in a nonambulatory patient with progressive CTCL with particular emphasis on the critical importance of in vivo dosimetry.