Fig. 1From: Failure pattern and suggestions for target volume delineation of carcinoma showing thymus-like differentiation treated with intensity-modulated radiotherapyExamples of target volume delineation for carcinoma showing thymus-like differentiation GTV, gross tumor volume; PTV-G, planning target volume for GTV; CTV, clinical target volume; PTV-C, planning target volume for CTV.Back to article page