Abstract: A testing or setting device for a PDD or PDT system or for training on such a system, which includes a lighting system, is provided with a housing in which the PDD or PDT system can be at least partially accommodated. The device is characterized in that a tissue phantom is installed in the housing in such a way that the surface of the tissue phantom can be at least partially lit by the lighting system and observed by the observation system, and that the tissue phantom includes at least one luminescent area. A tissue phantom, appropriate for use in the invention's device, has at least one luminescent area and is characterized by the fact that it has at least one additional area, whose luminescent characteristics differ from those of the first luminescent area.

Abstract: A method of and a device for the endoscopic fluorescence diagnosis of tissue, wherein the tissue is exposed to stimulating light via an endoscope for stimulation of fluorescence, which stimulating light is suitable, on account of its spectral distribution, to stimulate at least two different fluorescence modes in the tissue without filter switching in the stimulation beam path, and wherein the fluorescence light of the different fluorescence modes can be selectively observed.