The present paper deals with the feasibility and applications of quality of life measurement in the routine of a tumor follow-up clinic. 61 patients filled out the EORTC-30 questionnaire plus additional scales. Filling out the questionnaire constituted no burden for patients. Patients' responses were computed in a way as to allow for graphically presenting individual QL-profiles, as well as to compare different groups of patients. Considerations concerning the role of QL-measurement in clinical practice, in medical decision making, and in future research endeavours were brought forward.