Inclusion Criteria:  Age 18-100 years Histologically confirmed (according to the World Health Organization (WHO)/EORTC classification) MF/SS stages I-IV WHO performance status 0 -3 Absence of psychiatric illness or condition which could interfere with the subjects' ability to understand the requirements of the study. Written informed consent according to International Conference on Harmonization (ICH)/(Good Clinical Practice (GCP), and Swedish regulations No minimum or maximum required routine laboratory data  Exclusion Criteria:  Not applicable. No exclusion criteria are specified.