Figure 1From: Intensity modulated radiotherapy for high risk prostate cancer based on sentinel node SPECT imaging for target volume definitionTerms and definitions of nodal groups according to Martinez-Monge et al. (1999). The obturator and hypogastric lymph nodes include periprostatic and seminal vesicle lymphatic plexus, parts of perivesical and the perirectal lymphatic plexus nearby the prostate, the ventrocranial parts of the internal pudendal and inferior rectal nodesBack to article page